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Author SHA1 Message Date
Linus Torvalds
43fb83c17b ARM: soc updates for 6.13 
The SoC specific code updates for 6.13 are fairly minimal. One Broadcom
 SoC model gains automatic configuration for the debug uarg as we have
 on many other machines, the remaining changes are trivial cleanups.
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Merge tag 'soc-arm-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC updates from Arnd Bergmann:
 "The SoC specific code updates for 6.13 are fairly minimal.

  One Broadcom SoC model gains automatic configuration for the debug
  uarg as we have on many other machines, the remaining changes are
  trivial cleanups"

* tag 'soc-arm-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: imx: Switch to new sys-off handler API
  ARM: bcm: brcmstb: Drop custom init_irq callback
  ARM: bcm: Support BCMBCA debug UART
  ARM: zynq: Remove unused zynq_slcr_init() declaration
  ASoC: samsung: Remove obsoleted declaration for s3c64xx_ac97_setup_gpio
  ARM: samsung: Remove obsoleted declaration for s3c_hwmon_set_platdata
 2024-11-20 15:47:22 -08:00
Linus Torvalds
06e47dce8f soc: defconfig updates for 6.13 
As usual, a few newly added device drivers get enabled in the
 arm32 multi_v7_defconfig and arm64 defconfig as well as a few of
 the SoC specific config files.
 
 The main visible change is the inclusion of (reduced) debug info
 by default in the 32-bit defconfig.
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Merge tag 'soc-defconfig-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC defconfig updates from Arnd Bergmann:
 "As usual, a few newly added device drivers get enabled in the arm32
  multi_v7_defconfig and arm64 defconfig as well as a few of the SoC
  specific config files.

  The main visible change is the inclusion of (reduced) debug info by
  default in the 32-bit defconfig"

* tag 'soc-defconfig-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: imx_v6_v7_defconfig: Enable drivers for Kobo Clara 2E
  arm64: defconfig: Enable VBATTB clock and Renesas RTCA-3
  arm64: defconfig: Enable PCF857X GPIO expander
  arm64: defconfig: Enable sc7280 clock controllers
  ARM: configs: at91: enable PAC1934 driver as module
  ARM: multi_v7_defconfig: Enable debugging symbols by default
 2024-11-20 15:44:56 -08:00
Linus Torvalds
14d0e1a09f soc: driver updates for 6.12 
Nothing particular important in the SoC driver updates, just the usual
 improvements to for drivers/soc and a couple of subsystems that don't
 fit anywhere else:
 
  - The largest set of updates is for Qualcomm SoC drivers, extending the
    set of supported features for additional SoCs in the QSEECOM, LLCC
    and socinfo drivers.a
 
  - The ti_sci firmware driver gains support for power managment
 
  - The drivers/reset subsystem sees a rework of the microchip
    sparx5 and amlogic reset drivers to support additional chips,
    plus a few minor updates on other platforms
 
  - The SCMI firmware interface driver gains support for two protocol
    extensions, allowing more flexible use of the shared memory area
    and new DT binding properties for configurability.
 
  - Mediatek SoC drivers gain support for power managment on the MT8188
    SoC and a new driver for DVFS.
 
  - The AMD/Xilinx ZynqMP SoC drivers gain support for system reboot
    and a few bugfixes
 
  - The Hisilicon Kunpeng HCCS driver gains support for configuring
    lanes through sysfs
 
 Finally, there are cleanups and minor fixes for drivers/soc, drivers/bus,
 and drivers/memory, including changing back the .remove_new callback
 to .remove, as well as a few other updates for freescale (powerpc)
 soc drivers, NXP i.MX soc drivers, cznic turris platform driver, memory
 controller drviers, TI OMAP SoC drivers, and Tegra firmware drivers
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Merge tag 'soc-drivers-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC driver updates from Arnd Bergmann:
 "Nothing particular important in the SoC driver updates, just the usual
  improvements to for drivers/soc and a couple of subsystems that don't
  fit anywhere else:

   - The largest set of updates is for Qualcomm SoC drivers, extending
     the set of supported features for additional SoCs in the QSEECOM,
     LLCC and socinfo drivers.a

   - The ti_sci firmware driver gains support for power managment

   - The drivers/reset subsystem sees a rework of the microchip sparx5
     and amlogic reset drivers to support additional chips, plus a few
     minor updates on other platforms

   - The SCMI firmware interface driver gains support for two protocol
     extensions, allowing more flexible use of the shared memory area
     and new DT binding properties for configurability.

   - Mediatek SoC drivers gain support for power managment on the MT8188
     SoC and a new driver for DVFS.

   - The AMD/Xilinx ZynqMP SoC drivers gain support for system reboot
     and a few bugfixes

   - The Hisilicon Kunpeng HCCS driver gains support for configuring
     lanes through sysfs

  Finally, there are cleanups and minor fixes for drivers/{soc, bus,
  memory}, including changing back the .remove_new callback to .remove,
  as well as a few other updates for freescale (powerpc) soc drivers,
  NXP i.MX soc drivers, cznic turris platform driver, memory controller
  drviers, TI OMAP SoC drivers, and Tegra firmware drivers"

* tag 'soc-drivers-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (116 commits)
  soc: fsl: cpm1: qmc: Set the ret error code on platform_get_irq() failure
  soc: fsl: rcpm: fix missing of_node_put() in copy_ippdexpcr1_setting()
  soc: fsl: cpm1: tsa: switch to for_each_available_child_of_node_scoped()
  platform: cznic: turris-omnia-mcu: Rename variable holding GPIO line names
  platform: cznic: turris-omnia-mcu: Document the driver private data structure
  firmware: turris-mox-rwtm: Document the driver private data structure
  bus: Switch back to struct platform_driver::remove()
  soc: qcom: ice: Remove the device_link field in qcom_ice
  drm/msm/adreno: Setup SMMU aparture for per-process page table
  firmware: qcom: scm: Introduce CP_SMMU_APERTURE_ID
  firmware: arm_scpi: Check the DVFS OPP count returned by the firmware
  soc: qcom: socinfo: add IPQ5424/IPQ5404 SoC ID
  dt-bindings: arm: qcom,ids: add SoC ID for IPQ5424/IPQ5404
  soc: qcom: llcc: Flip the manual slice configuration condition
  dt-bindings: firmware: qcom,scm: Document sm8750 SCM
  firmware: qcom: uefisecapp: Allow X1E Devkit devices
  misc: lan966x_pci: Fix dtc warn 'Missing interrupt-parent'
  misc: lan966x_pci: Fix dtc warns 'missing or empty reg/ranges property'
  soc: qcom: llcc: Add LLCC configuration for the QCS8300 platform
  dt-bindings: cache: qcom,llcc: Document the QCS8300 LLCC
  ...
 2024-11-20 15:40:54 -08:00
Linus Torvalds
9c39d5ab45 soc: devicetree updates for 6.13 
This release adds the devicetree files for an impressive number of new
 SoC variants, though as expected these are all related to others we
 already support:
 
  - The microchip sam9x7 devicetree is now added, after the device driver
    and platform code has already made it in. This is likely the last ARMv5
    (!)  platform to ever get added, updating the 20+ year old at91/sam9
    platform wtih DDR3 memory and gigabit ethernet.
 
  - On the Apple platform, there are now devicetree files for a number of
    A-series SoCs in addition to the M-series ones, these are used
    primarily in phones and tablets, but are closely related to the
    already supported chips.
 
  - Samsung Exynos 8895 and Exynos 990 are more phone SoCs used in older
    Samsung Galaxy phones.
 
  - Qualcomm Snapdragon 778G (SM7325) is another phone SoC, closely related
    to the Snapdragon 7c+ Gen 3 (SC7280) used in low-end laptops.
 
  - Rockchip RK3528 and RK3576 are new variants of their TV box and Tablet
    chips, still using the older ARMv8.0 cores from RK3328/RK3399 but
    with a newer process and other improvements from the RK35xx (otherwise
    ARMv8.2) chips.  RK3566T and RK3399-S are also added, these are just
    lower-cost versions of their normal counterparts.
 
  - TI J742S2 is a feature-reduced version of the J784s4
    industrial/automotive SoC, with fewer CPU cores.
 
  - Sophgo SG2002 is an embedded SoC with one RISC-V (C906) and one ARM
    (Cortex-A53) core, at this point support is only added for running
    on the RISC-V side on the LicheeRV Nano board.
 
 A total of 92 new .dts files describing individual machines is added,
 which must be a new record. The majority of these is for the newly added
 chips above, notably all the Apple phones and tablets.  The other new
 machines include nine industrial/embedded boards with NXP i.MX6 or i.MX8
 SoCs, eight for Rockchips RK35XX and one or two each for Rockchips RV1109,
 RK3308, Allwinner A33, Tegra 234, Qualcomm qcs9100/sc8280xp/x1e80100,
 TI AM625 and Starfive JH7110.
 
 As usual there are also many newlyad added features in existing boards
 as well as cleanups and minor bugfixes.
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Merge tag 'soc-dt-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC devicetree updates from Arnd Bergmann:
 "This release adds the devicetree files for an impressive number of new
  SoC variants, though as expected these are all related to others we
  already support:

   - The microchip sam9x7 devicetree is now added, after the device
     driver and platform code has already made it in. This is likely the
     last ARMv5 (!) platform to ever get added, updating the 20+ year
     old at91/sam9 platform with DDR3 memory and gigabit ethernet.

   - On the Apple platform, there are now devicetree files for a number
     of A-series SoCs in addition to the M-series ones, these are used
     primarily in phones and tablets, but are closely related to the
     already supported chips.

   - Samsung Exynos 8895 and Exynos 990 are more phone SoCs used in
     older Samsung Galaxy phones.

   - Qualcomm Snapdragon 778G (SM7325) is another phone SoC, closely
     related to the Snapdragon 7c+ Gen 3 (SC7280) used in low-end
     laptops.

   - Rockchip RK3528 and RK3576 are new variants of their TV box and
     Tablet chips, still using the older ARMv8.0 cores from
     RK3328/RK3399 but with a newer process and other improvements from
     the RK35xx (otherwise ARMv8.2) chips. RK3566T and RK3399-S are also
     added, these are just lower-cost versions of their normal
     counterparts.

   - TI J742S2 is a feature-reduced version of the J784s4
     industrial/automotive SoC, with fewer CPU cores.

   - Sophgo SG2002 is an embedded SoC with one RISC-V (C906) and one ARM
     (Cortex-A53) core, at this point support is only added for running
     on the RISC-V side on the LicheeRV Nano board.

  A total of 92 new .dts files describing individual machines is added,
  which must be a new record. The majority of these is for the newly
  added chips above, notably all the Apple phones and tablets. The other
  new machines include nine industrial/embedded boards with NXP i.MX6 or
  i.MX8 SoCs, eight for Rockchips RK35XX and one or two each for
  Rockchips RV1109, RK3308, Allwinner A33, Tegra 234, Qualcomm
  qcs9100/sc8280xp/x1e80100, TI AM625 and Starfive JH7110.

  As usual there are also many newly added features in existing boards
  as well as cleanups and minor bugfixes"

* tag 'soc-dt-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (718 commits)
  arm64: dts: apm: Remove unused and undocumented "bus_num" property
  arm: dts: spear13xx: Remove unused and undocumented "pl022,slave-tx-disable" property
  arm64: dts: amd: Remove unused and undocumented "amd,zlib-support" property
  arm64: dts: lg131x: Update spi clock properties
  arm64: dts: seattle: Update spi clock properties
  arm64: dts: rockchip: use less broad pinctrl for pcie3x1 on Radxa E25
  arm64: dts: rockchip: add Radxa ROCK 5C
  dt-bindings: arm: rockchip: add Radxa ROCK 5C
  arm64: dts: rockchip: orangepi-5-plus: Enable GPU
  arm64: dts: rockchip: enable USB3 on NanoPC-T6
  arm64: dts: rockchip: adapt regulator nodenames to preferred form
  arm64: dts: rockchip: Enable HDMI display for rk3588 Cool Pi GenBook
  arm64: dts: rockchip: Enable HDMI display for rk3588 Cool Pi 4B
  arm64: dts: rockchip: Enable HDMI0 for rk3588 Cool Pi CM5 EVB
  arm64: dts: rockchip: Enable HDMI on NanoPi R6C/R6S
  arm64: dts: rockchip: Enable GPU on NanoPi R6C/R6S
  arm64: dts: rockchip: Enable HDMI on Hardkernel ODROID-M2
  arm64: dts: rockchip: Remove non-removable flag from sdmmc on rk3576-sige5
  arm64: dts: allwinner: a100: perf1: Add eMMC and MMC node
  arm64: dts: allwinner: pinephone: Add mount matrix to accelerometer
  ...
 2024-11-20 15:26:46 -08:00
Linus Torvalds
79caa6c88a asm-generic updates for 6.13 
These are a number of unrelated cleanups, generally simplifying the
 architecture specific header files:
 
  - A series from Al Viro simplifies asm/vga.h, after it turns out that
    most of it can be generalized.
 
  - A series from Julian Vetter adds a common version of
    memcpy_{to,from}io() and memset_io() and changes most architectures
    to use that instead of their own implementation
 
  - A series from Niklas Schnelle concludes his work to make PC
    style inb()/outb() optional
 
  - Nicolas Pitre contributes improvements for the generic do_div()
    helper
 
  - Christoph Hellwig adds a generic version of page_to_phys()
    and phys_to_page(), replacing the slightly different architecture
    specific definitions.
 
  - Uwe Kleine-Koenig has a minor cleanup for ioctl definitions
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Merge tag 'asm-generic-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic updates from Arnd Bergmann:
 "These are a number of unrelated cleanups, generally simplifying the
  architecture specific header files:

   - A series from Al Viro simplifies asm/vga.h, after it turns out that
     most of it can be generalized.

   - A series from Julian Vetter adds a common version of
     memcpy_{to,from}io() and memset_io() and changes most architectures
     to use that instead of their own implementation

   - A series from Niklas Schnelle concludes his work to make PC style
     inb()/outb() optional

   - Nicolas Pitre contributes improvements for the generic do_div()
     helper

   - Christoph Hellwig adds a generic version of page_to_phys() and
     phys_to_page(), replacing the slightly different architecture
     specific definitions.

   - Uwe Kleine-Koenig has a minor cleanup for ioctl definitions"

* tag 'asm-generic-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (24 commits)
  empty include/asm-generic/vga.h
  sparc: get rid of asm/vga.h
  asm/vga.h: don't bother with scr_mem{cpy,move}v() unless we need to
  vt_buffer.h: get rid of dead code in default scr_...() instances
  tty: serial: export serial_8250_warn_need_ioport
  lib/iomem_copy: fix kerneldoc format style
  hexagon: simplify asm/io.h for !HAS_IOPORT
  loongarch: Use new fallback IO memcpy/memset
  csky: Use new fallback IO memcpy/memset
  arm64: Use new fallback IO memcpy/memset
  New implementation for IO memcpy and IO memset
  watchdog: Add HAS_IOPORT dependency for SBC8360 and SBC7240
  __arch_xprod64(): make __always_inline when optimizing for performance
  ARM: div64: improve __arch_xprod_64()
  asm-generic/div64: optimize/simplify __div64_const32()
  lib/math/test_div64: add some edge cases relevant to __div64_const32()
  asm-generic: add an optional pfn_valid check to page_to_phys
  asm-generic: provide generic page_to_phys and phys_to_page implementations
  asm-generic/io.h: Remove I/O port accessors for HAS_IOPORT=n
  tty: serial: handle HAS_IOPORT dependencies
  ...
 2024-11-20 15:13:02 -08:00
Linus Torvalds
c66fbc6c3d OpenRISC updates for 6.13 
A single fixup from me:
 
  - Fix bug with earlycon being broken due to removal of early_ioremap.
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Merge tag 'for-linus' of https://github.com/openrisc/linux

Pull OpenRISC update from Stafford Horne:
 "A single fixup from me: Fix bug with earlycon being broken due to
  removal of early_ioremap"

* tag 'for-linus' of https://github.com/openrisc/linux:
  openrisc: Implement fixmap to fix earlycon
 2024-11-20 14:56:02 -08:00
Linus Torvalds
f103749785 Microblaze patches for 6.13-rc1 
- Export xmb_manager functions
 - Remove empty #ifndef __ASSEMBLY__ statement
 - Use str_yes_no() helper in show_cpuinfo()
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Merge tag 'microblaze-v6.13' of git://git.monstr.eu/linux-2.6-microblaze

Pull microblaze updates from Michal Simek:

 - Export xmb_manager functions

 - Remove empty #ifndef __ASSEMBLY__ statement

 - Use str_yes_no() helper in show_cpuinfo()

* tag 'microblaze-v6.13' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: mb: Use str_yes_no() helper in show_cpuinfo()
  microblaze: Remove empty #ifndef __ASSEMBLY__ statement
  microblaze: Export xmb_manager functions
 2024-11-20 14:54:05 -08:00
Linus Torvalds
7e7f65647e ipe/stable-6.13 PR 20241119 
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Merge tag 'ipe-pr-20241119' of git://git.kernel.org/pub/scm/linux/kernel/git/wufan/ipe

Pull IPE update from Fan Wu:
 "One commit from Colin Ian King, which removes unnecessary error
  handling code in the IPE boot policy generation helper program"

* tag 'ipe-pr-20241119' of git://git.kernel.org/pub/scm/linux/kernel/git/wufan/ipe:
  scripts: ipe: polgen: remove redundant close and error exit path
 2024-11-20 14:51:08 -08:00
Linus Torvalds
df66aeadd8 seccomp update for v6.13-rc1 
- Provide stub for !HAVE_ARCH_SECCOMP_FILTER (Linus Walleij)
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Merge tag 'seccomp-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull seccomp update from Kees Cook:

 - Provide stub for !HAVE_ARCH_SECCOMP_FILTER (Linus Walleij)

   This will make it easier to port arm32 to the generic entry code.

* tag 'seccomp-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  seccomp: Stub for !HAVE_ARCH_SECCOMP_FILTER
 2024-11-20 14:36:28 -08:00
Linus Torvalds
18a411cc5d EFI updates for v6.13 
- Align handling of the compiled-in command line with the core kernel
 
 - Measure the initrd into the TPM also when it was loaded via the EFI
   file I/O protocols
 
 - Clean up TPM event log handling
 
 - Sanity check the EFI memory attributes table, and apply it after kexec
   too
 
 - Assorted other fixes
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Merge tag 'efi-next-for-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi

Pull EFI updates from Ard Biesheuvel:
 "Just some cleanups and bug fixes this time around:

   - Align handling of the compiled-in command line with the core kernel

   - Measure the initrd into the TPM also when it was loaded via the EFI
     file I/O protocols

   - Clean up TPM event log handling

   - Sanity check the EFI memory attributes table, and apply it after
     kexec too

   - Assorted other fixes"

* tag 'efi-next-for-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  efi: Fix memory leak in efivar_ssdt_load
  efi/libstub: Take command line overrides into account for loaded files
  efi/libstub: Fix command line fallback handling when loading files
  efi/libstub: Parse builtin command line after bootloader provided one
  x86/efi: Apply EFI Memory Attributes after kexec
  x86/efi: Drop support for the EFI_PROPERTIES_TABLE
  efi/memattr: Ignore table if the size is clearly bogus
  efi/zboot: Fix outdated comment about using LoadImage/StartImage
  efi/libstub: Free correct pointer on failure
  libstub,tpm: do not ignore failure case when reading final event log
  tpm: fix unsigned/signed mismatch errors related to __calc_tpm2_event_size
  tpm: do not ignore memblock_reserve return value
  tpm: fix signed/unsigned bug when checking event logs
  efi/libstub: measure initrd to PCR9 independent of source
  efi/libstub: remove unnecessary cmd_line_len from efi_convert_cmdline()
  efi/libstub: fix efi_parse_options() ignoring the default command line
 2024-11-20 14:13:28 -08:00
Linus Torvalds
fcb3ad4366 platform-drivers-x86 for v6.13-1 
Highlights:
  - alienware-wmi:	WMAX thermal interface support
  - amd/hsmp:		Split ACPI and platform device based drivers
  - amd/x3d_vcache:	X3D frequency/cache mode switching support
  - asus-wmi:		Thermal policy fixes
  - intel/pmt:		Disable C1 auto-demotion in suspend to allow
 			entering the deepest C-states
  - intel-hid:		Fix volume buttons on Thinkpad X12 Detachable
 			Tablet Gen 1
  - intel_scu_ipc:	Replace "workaround" with 32-bit IO
  - panasonic-laptop:	Correct *_show() function error handling
  - p2sb:		Gemini Lake P2SB devfn correction
  - think-lmi:		Admin/System certificate authentication support
  - wmi:			Disable WMI devices for shutdown, refactoring
 			continues
  - x86-android-tablets:	Vexia EDU ATLA 10 tablet support
  - platform/surface:	Surface Pro 9 5G (Arm/QCOM) support
  - Miscellaneous cleanups / refactoring / improvements
 
 Expected conflicts:
  - hsmp driver split into two vs constifying bin_attribute [1]
 
 [1] https://lore.kernel.org/all/20241107212645.41252436@canb.auug.org.au/
 
 The following is an automated shortlog grouped by driver:
 
 alienware-wmi:
  -  added force module parameters
  -  added platform profile support
  -  Adds support to Alienware x17 R2
  -  alienware_wmax_command() is now input size agnostic
  -  create_thermal_profile() no longer brute-forces IDs
  -  extends the list of supported models
  -  fixed indentation and clean up
  -  Fix spelling mistake "requieres" -> "requires"
  -  order alienware_quirks[] alphabetically
  -  WMAX interface documentation
 
 amd: amd_3d_vcache:
  -  Add AMD 3D V-Cache optimizer driver
  -  Add sysfs ABI documentation
 
 amd/hsmp:
  -  Add new error code and error logs
  -  Change generic plat_dev name to hsmp_pdev
  -  Change the error type
  -  Convert amd_hsmp_rdwr() to a function pointer
  -  Create hsmp/ directory
  -  Create separate ACPI, plat and common drivers
  -  Create wrapper function init_acpi()
  -  Make hsmp_pdev static instead of global
  -  mark hsmp_msg_desc_table[] as maybe_unused
  -  Move ACPI code to acpi.c
  -  Move platform device specific code to plat.c
  -  Move structure and macros to header file
  -  Use dev_groups in the driver structure
  -  Use name space while exporting module symbols
 
 amd/pmf:
  -  Switch to platform_get_resource() and devm_ioremap_resource()
  -  Use dev_err_probe() to simplify error handling
 
 asus-laptop:
  -  prefer strscpy() over strcpy()
 
 asus-wmi:
  -  Fix inconsistent use of thermal policies
  -  Use platform_profile_cycle()
 
 classmate-laptop:
  -  Replace snprintf in show functions with sysfs_emit
 
 compal-laptop:
  -  use sysfs_emit() instead of sprintf()
 
 dell-dcdbase:
  -  Replace snprintf in show functions with sysfs_emit
 
 Documentation: alienware-wmi:
  -  Describe THERMAL_INFORMATION operation 0x02
 
 eeepc-laptop:
  -  use sysfs_emit() instead of sprintf()
 
 hp: hp-bioscfg:
  -  remove redundant if statement
 
 intel:
  -  Add 'intel' prefix to the modules automatically
 
 intel-hid:
  -  fix volume buttons on Thinkpad X12 Detachable Tablet Gen 1
 
 intel/pmc:
  -  Disable C1 auto-demotion during suspend
  -  Refactor platform resume functions to use cnl_resume()
 
 intel/pmt:
  -  allow user offset for PMT callbacks
  -  Correct the typo 'ACCCESS_LOCAL'
 
 intel_scu_ipc:
  -  Convert to check for errors first
  -  Don't use "proxy" headers
  -  Replace workaround by 32-bit IO
  -  Save a copy of the entire struct intel_scu_ipc_data
  -  Simplify code with cleanup helpers
  -  Unify the flow in pwr_reg_rdwr()
 
 intel/vsec:
  -  Remove a useless mutex
 
 MAINTAINERS:
  -  adjust file entry in INTEL TPMI DRIVER
  -  Change AMD PMF driver status to "Supported"
  -  Update ISHTP ECLITE maintainer entry
 
 p2sb:
  -  Cache correct PCI bar for P2SB on Gemini Lake
 
 panasonic-laptop:
  -  Return errno correctly in show callback
 
 surface: aggregator_registry:
  -  Add Surface Pro 9 5G
 
 Switch back to struct platform_driver::
  - remove()
 
 think-lmi:
  -  Add certificate as mechanism
  -  Allow empty admin password
  -  improve check if BIOS account security enabled
  -  Multi-certificate support
 
 wmi:
  -  Implement proper shutdown handling
  -  Introduce to_wmi_driver()
  -  Remove wmi_block_list
  -  Replace dev_to_wdev() with to_wmi_device()
 
 x86: acer-wmi:
  -  remove unused macros
 
 x86-android-tablets:
  -  Add get_i2c_adap_by_handle() helper
  -  Add support for getting i2c_adapter by PCI parent devname()
  -  Add support for Vexia EDU ATLA 10 tablet
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Merge tag 'platform-drivers-x86-v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Ilpo Järvinen:

 - alienware WMAX thermal interface support

 - Split ACPI and platform device based amd/hsmp drivers

 - AMD X3D frequency/cache mode switching support

 - asus thermal policy fixes

 - Disable C1 auto-demotion in suspend to allow entering the deepest
   C-states

 - Fix volume buttons on Thinkpad X12 Detachable Tablet Gen 1

 - Replace intel_scu_ipc "workaround" with 32-bit IO

 - Correct *_show() function error handling in panasonic-laptop

 - Gemini Lake P2SB devfn correction

 - think-lmi Admin/System certificate authentication support

 - Disable WMI devices for shutdown, refactoring continues

 - Vexia EDU ATLA 10 tablet support

 - Surface Pro 9 5G (Arm/QCOM) support

 - Misc cleanups / refactoring / improvements

* tag 'platform-drivers-x86-v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (69 commits)
  platform/x86: p2sb: Cache correct PCI bar for P2SB on Gemini Lake
  platform/x86: panasonic-laptop: Return errno correctly in show callback
  Documentation: alienware-wmi: Describe THERMAL_INFORMATION operation 0x02
  alienware-wmi: create_thermal_profile() no longer brute-forces IDs
  alienware-wmi: Adds support to Alienware x17 R2
  alienware-wmi: extends the list of supported models
  alienware-wmi: order alienware_quirks[] alphabetically
  platform/x86/intel/pmt: allow user offset for PMT callbacks
  platform/x86/amd/hsmp: Change the error type
  platform/x86/amd/hsmp: Add new error code and error logs
  platform/x86/amd: amd_3d_vcache: Add sysfs ABI documentation
  platform/x86/amd: amd_3d_vcache: Add AMD 3D V-Cache optimizer driver
  intel-hid: fix volume buttons on Thinkpad X12 Detachable Tablet Gen 1
  platform/x86/amd/hsmp: mark hsmp_msg_desc_table[] as maybe_unused
  platform/x86: asus-wmi: Use platform_profile_cycle()
  platform/x86: asus-wmi: Fix inconsistent use of thermal policies
  platform/x86: hp: hp-bioscfg: remove redundant if statement
  MAINTAINERS: Update ISHTP ECLITE maintainer entry
  platform/x86: x86-android-tablets: Add support for Vexia EDU ATLA 10 tablet
  platform/x86: x86-android-tablets: Add support for getting i2c_adapter by PCI parent devname()
  ...
 2024-11-20 14:07:55 -08:00
Linus Torvalds
70e8ef2d67 media updates for v6.13-rc1 
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Merge tag 'media/v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fix from Mauro Carvalho Chehab:

 - uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in
   uvc_parse_format

* tag 'media/v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format
 2024-11-20 14:05:34 -08:00
Linus Torvalds
9f5a6a1fe6 media updates for v6.13-rc1 
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Merge tag 'media/v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - removal of the old omap4iss media driver

 - mantis: remove orphan mantis_core.h

 - add support for Raspberypi CFE

 - uvc driver got a co-maintainer

 - main media tree moved to git://linuxtv.org/media.git

 - lots of driver cleanups, updates and fixes

* tag 'media/v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (233 commits)
  docs: media: update location of the media patches
  MAINTAINERS: update location of media main tree
  media: MAINTAINERS: Add Hans de Goede as USB VIDEO CLASS co-maintainer
  media: platform: samsung: s5p-jpeg: Remove deadcode
  media: qcom: camss: Add MSM8953 resources
  media: dt-bindings: Add qcom,msm8953-camss
  media: qcom: camss: implement pm domain ops for VFE v4.1
  media: platform: exynos4-is: Fix an OF node reference leak in fimc_md_is_isp_available
  media: adv7180: Also check for "adi,force-bt656-4"
  media: dt-bindings: adv7180: Document 'adi,force-bt656-4'
  media: mgb4: Fix inconsistent input/output alignment in loopback mode
  media: replace obsolete hans.verkuil@cisco.com alias
  Documentation: media: improve V4L2_CID_MIN_BUFFERS_FOR_*, doc
  media: vicodec: add V4L2_CID_MIN_BUFFERS_FOR_* controls
  media: atomisp: Add check for rgby_data memory allocation failure
  media: atomisp: remove redundant re-checking of err
  media: atomisp: Fix spelling errors reported by codespell
  media: atomisp: Remove License information boilerplate
  media: atomisp: Fix typos in comment
  media: atomisp: hmm_bo: Fix spelling errors in hmm_bo.h
  ...
 2024-11-20 14:01:15 -08:00
Linus Torvalds
b57807cbbf hid-for-linus-2024111801 
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Merge tag 'hid-for-linus-2024111801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID updates from Jiri Kosina:

 - improvement in the way hid-bpf coexists with specific drivers (others
   than hid-generic) that are already bound to devices (Benjamin
   Tissoires)

 - removal of three way-too-aggressive BUG_ON()s from HID drivers (He
   Lugang)

 - assorted cleanups and small code fixes to HID core (Dmitry Torokhov,
   Yan Zhen, Nathan Chancellor, Andy Shevchenko)

 - support for Corsair Void headset family (Stuart Hayhurst)

 - Support for Goodix GT7986U SPI (Charles Wang)

 - initial vendor-specific driver for Kysona, currently adding support
   for Kysona M600 (Lode Willems)

 - other assorted code cleanups and small bugfixes all over the place

* tag 'hid-for-linus-2024111801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (40 commits)
  HID: multitouch: make mt_set_mode() less cryptic
  HID: hid-goodix-spi: Add OF supports
  dt-bindings: input: Goodix GT7986U SPI HID Touchscreen
  HID: hyperv: streamline driver probe to avoid devres issues
  HID: magicmouse: Apple Magic Trackpad 2 USB-C driver support
  HID: rmi: Add select RMI4_F3A in Kconfig
  HID: wacom: Interpret tilt data from Intuos Pro BT as signed values
  HID: steelseries: Add capacity_level mapping
  HID: steelseries: Fix battery requests stopping after some time
  HID: hid-goodix: Fix HID get/set feature operation overwritten problem
  HID: hid-goodix: Return 0 when receiving an empty HID feature package
  HID: bpf: drop use of Logical|Physical|UsageRange
  HID: bpf: Fix Rapoo M50 Plus Silent side buttons
  HID: bpf: Fix NKRO on Mistel MD770
  HID: replace BUG_ON() with WARN_ON()
  HID: wacom: Set eraser status when either 'Eraser' or 'Invert' usage is set
  HID: Kysona: add basic online status
  HID: Kysona: check battery status every 5s using a workqueue
  HID: Kysona: Add basic battery reporting for Kysona M600
  HID: Add IDs for Kysona
  ...
 2024-11-20 13:57:40 -08:00
Linus Torvalds
e6de688e93 Devicetree updates for v6.13: 
Bindings:
 
 - Enable dtc "interrupt_provider" warnings for binding examples.
   Fix the warnings in fsl,mu-msi and ti,sci-inta due to this.
 
 - Convert zii,rave-sp-wdt, zii,rave-sp-pwrbutton,  and
   altr,fpga-passive-serial to DT schema format
 
 - Add some documentation on the different forms of YAML text blocks
   which are a constant source of review comments
 
 - Fix some schema errors in constraints for arrays
 
 - Add compatibles for qcom,sar2130p-pdc and onnn,adt7462
 
 DT core:
 
 - Allow overlay kunit tests to run CONFIG_OF_OVERLAY=n
 
 - Add some warnings on deprecated address handling
 
 - Rework early_init_dt_scan() so the arch can pass in the phys address
   of the DTB as __pa() is not always valid to use. This fixes a warning
   for arm64 with kexec.
 
 - Add and use some new DT graph iterators for iterating over ports and
   endpoints
 
 - Rework reserved-memory handling to be sized dynamically for fixed
   regions
 
 - Optimize of_modalias() to avoid a strlen() call
 
 - Constify struct device_node and property pointers where ever possible
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Merge tag 'devicetree-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "Bindings:

   - Enable dtc "interrupt_provider" warnings for binding examples. Fix
     the warnings in fsl,mu-msi and ti,sci-inta due to this.

   - Convert zii,rave-sp-wdt, zii,rave-sp-pwrbutton, and
     altr,fpga-passive-serial to DT schema format

   - Add some documentation on the different forms of YAML text blocks
     which are a constant source of review comments

   - Fix some schema errors in constraints for arrays

   - Add compatibles for qcom,sar2130p-pdc and onnn,adt7462

  DT core:

   - Allow overlay kunit tests to run CONFIG_OF_OVERLAY=n

   - Add some warnings on deprecated address handling

   - Rework early_init_dt_scan() so the arch can pass in the phys
     address of the DTB as __pa() is not always valid to use. This fixes
     a warning for arm64 with kexec.

   - Add and use some new DT graph iterators for iterating over ports
     and endpoints

   - Rework reserved-memory handling to be sized dynamically for fixed
     regions

   - Optimize of_modalias() to avoid a strlen() call

   - Constify struct device_node and property pointers where ever
     possible"

* tag 'devicetree-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (36 commits)
  of: Allow overlay kunit tests to run CONFIG_OF_OVERLAY=n
  dt-bindings: interrupt-controller: qcom,pdc: Add SAR2130P compatible
  of/address: Rework bus matching to avoid warnings
  of: WARN on deprecated #address-cells/#size-cells handling
  of/fdt: Don't use default address cell sizes for address translation
  dt-bindings: Enable dtc "interrupt_provider" warnings
  of/fdt: add dt_phys arg to early_init_dt_scan and early_init_dt_verify
  dt-bindings: cache: qcom,llcc: Fix X1E80100 reg entries
  dt-bindings: watchdog: convert zii,rave-sp-wdt.txt to yaml format
  dt-bindings: input: convert zii,rave-sp-pwrbutton.txt to yaml
  media: xilinx-tpg: use new of_graph functions
  fbdev: omapfb: use new of_graph functions
  gpu: drm: omapdrm: use new of_graph functions
  ASoC: audio-graph-card2: use new of_graph functions
  ASoC: audio-graph-card: use new of_graph functions
  ASoC: test-component: use new of_graph functions
  of: property: use new of_graph functions
  of: property: add of_graph_get_next_port_endpoint()
  of: property: add of_graph_get_next_port()
  of: module: remove strlen() call in of_modalias()
  ...
 2024-11-20 13:19:25 -08:00
Linus Torvalds
80db457e8d auxdisplay for v6.13-1 
* Move Holtek 16k33 driver to use agnostic i2c_get_match_data()
  * Miscellaneuous cleanups
 
 The following is an automated git shortlog grouped by driver:
 
 cfag12864b:
  - Remove unused functions
 
 ht16k33:
  - Make use of i2c_get_match_data()
  - Drop explicit initialization of struct i2c_device_id::driver_data to 0
 
 lcd2s:
  - Drop explicit initialization of struct i2c_device_id::driver_data to 0
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Merge tag 'auxdisplay-v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-auxdisplay

Pull auxdisplay update from Andy Shevchenko:

 - Move Holtek 16k33 driver to use agnostic i2c_get_match_data()

 - Miscellaneuous cleanups

* tag 'auxdisplay-v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-auxdisplay:
  auxdisplay: Remove unused functions
  auxdisplay: ht16k33: Make use of i2c_get_match_data()
  auxdisplay: Drop explicit initialization of struct i2c_device_id::driver_data to 0
 2024-11-20 12:55:41 -08:00
Linus Torvalds
38556294b8 MMC core: 
- Add support for Ultra Capacity SD cards (SDUC, 2TB to 128TB)
  - Add support for Ultra High-Speed II SD cards (UHS-II)
  - Use a reset control for pwrseq_simple
  - Add SD card quirk for broken poweroff notification
  - Use GFP_NOIO for SD ACMD22
 
 MMC host:
  - bcm2835: Introduce proper clock handling
  - mtk-sd: Add support for the Host-Software-Queue interface
  - mtk-sd: Add support for the mt7988/mt8196 variants
  - mtk-sd: Fix a couple of error paths in ->probe()
  - sdhci: Add interface to support UHS-II SD cards
  - sdhci_am654: Fixup support for changing the signal voltage level
  - sdhci-cadence: Add support for the Microchip PIC64GX variant
  - sdhci-esdhc-imx: Add support for eMMC HW-reset
  - sdhci-msm: Add support for the X1E80100/IPQ5424/SAR2130P/QCS615 variants
  - sdhci-of-arasan: Add support for eMMC HW-reset
  - sdhci-pci-gli: Add UHS-II support for the GL9767/GL9755 variants
 
 MEMSTICK:
  - A couple of minor updates
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Merge tag 'mmc-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Add support for Ultra Capacity SD cards (SDUC, 2TB to 128TB)
   - Add support for Ultra High-Speed II SD cards (UHS-II)
   - Use a reset control for pwrseq_simple
   - Add SD card quirk for broken poweroff notification
   - Use GFP_NOIO for SD ACMD22

  MMC host:
   - bcm2835: Introduce proper clock handling
   - mtk-sd: Add support for the Host-Software-Queue interface
   - mtk-sd: Add support for the mt7988/mt8196 variants
   - mtk-sd: Fix a couple of error paths in ->probe()
   - sdhci: Add interface to support UHS-II SD cards
   - sdhci_am654: Fixup support for changing the signal voltage level
   - sdhci-cadence: Add support for the Microchip PIC64GX variant
   - sdhci-esdhc-imx: Add support for eMMC HW-reset
   - sdhci-msm: Add support for the X1E80100/IPQ5424/SAR2130P/QCS615 variants
   - sdhci-of-arasan: Add support for eMMC HW-reset
   - sdhci-pci-gli: Add UHS-II support for the GL9767/GL9755 variants

  MEMSTICK:
   - A couple of minor updates"

* tag 'mmc-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (78 commits)
  mmc: pwrseq_simple: Handle !RESET_CONTROLLER properly
  mmc: mtk-sd: Fix MMC_CAP2_CRYPTO flag setting
  mmc: mtk-sd: Fix error handle of probe function
  mmc: core: Correction a warning caused by incorrect type in assignment for UHS-II
  mmc: sdhci-esdhc-imx: Update esdhc sysctl dtocv bitmask
  mmc: sdhci-esdhc-imx: Implement emmc hardware reset
  mmc: core: Correct type in variable assignment for UHS-II
  mmc: sdhci-uhs2: correction a warning caused by incorrect type in argument
  mmc: sdhci-uhs2: Remove unnecessary variables
  mmc: sdhci-uhs2: Correct incorrect type in argument
  mmc: sdhci: Make MMC_SDHCI_UHS2 config symbol invisible
  mmc: sdhci-uhs2: Remove unnecessary NULL check
  mmc: core: Fix error paths for UHS-II card init and re-init
  mmc: core: Add error handling of sd_uhs2_power_up()
  mmc: core: Simplify sd_uhs2_power_up()
  mmc: bcm2835: Introduce proper clock handling
  mmc: bcm2835: Fix type of current clock speed
  dt-bindings: mmc: Add sdhci compatible for QCS615
  mmc: core: Use GFP_NOIO in ACMD22
  dt-bindings: mmc: sdhci-msm: Add SAR2130P compatible
  ...
 2024-11-20 12:51:32 -08:00
Linus Torvalds
75f2b37dd0 pmdomain core: 
- Set the required dev for a required OPP during genpd attach
  - Add support for required OPPs to dev_pm_domain_attach_list()
 
 pmdomain providers:
  - ti: Enable GENPD_FLAG_ACTIVE_WAKEUP flag for ti_sci PM domains
  - mediatek: Add support for MT6735 PM domains
  - mediatek: Use OF-specific regulator API to get power domain supply
  - qcom: Add support for the SM8750/SAR2130P/qcs615/qcs8300 rpmhpds
 
 pmdomain consumers:
  - Convert a couple of consumer drivers to *_pm_domain_attach|detach_list()
 
 opp core:
  - Rework and cleanup some code that manages required OPPs
  - Remove *_opp_attach|detach_genpd()
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Merge tag 'pmdomain-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain updates from Ulf Hansson:
"pmdomain core:
   - Set the required dev for a required OPP during genpd attach
   - Add support for required OPPs to dev_pm_domain_attach_list()

  pmdomain providers:
   - ti: Enable GENPD_FLAG_ACTIVE_WAKEUP flag for ti_sci PM domains
   - mediatek: Add support for MT6735 PM domains
   - mediatek: Use OF-specific regulator API to get power domain supply
   - qcom: Add support for the SM8750/SAR2130P/qcs615/qcs8300 rpmhpds

  pmdomain consumers:
   - Convert a couple of consumer drivers to
     *_pm_domain_attach|detach_list()

  opp core:
   - Rework and cleanup some code that manages required OPPs
   - Remove *_opp_attach|detach_genpd()"

* tag 'pmdomain-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (25 commits)
  pmdomain: qcom: rpmhpd: Add rpmhpd support for SM8750
  dt-bindings: power: qcom,rpmpd: document the SM8750 RPMh Power Domains
  pmdomain: imx: Use of_property_present() for non-boolean properties
  pmdomain: imx: gpcv2: replace dev_err() with dev_err_probe()
  pmdomain: ti-sci: Use scope based of_node_put() to simplify code.
  pmdomain: ti-sci: Add missing of_node_put() for args.np
  pmdomain: ti-sci: set the GENPD_FLAG_ACTIVE_WAKEUP flag for all PM domains
  pmdomain: mediatek: Add support for MT6735
  pmdomain: qcom: rpmhpd: add support for SAR2130P
  dt-bindings: power: Add binding for MediaTek MT6735 power controller
  dt-bindings: power: rpmpd: Add SAR2130P compatible
  OPP: Drop redundant *_opp_attach|detach_genpd()
  cpufreq: qcom-nvmem: Convert to dev_pm_domain_attach|detach_list()
  media: venus: Convert into devm_pm_domain_attach_list() for OPP PM domain
  drm/tegra: gr3d: Convert into devm_pm_domain_attach_list()
  OPP: Drop redundant code in _link_required_opps()
  pmdomain: core: Set the required dev for a required OPP during genpd attach
  pmdomain: core: Manage the default required OPP from a separate function
  PM: domains: Support required OPPs in dev_pm_domain_attach_list()
  OPP: Rework _set_required_devs() to manage a single device per call
  ...
 2024-11-20 12:44:59 -08:00
Linus Torvalds
0cea110255 power sequencing updates for v6.13-rc1 
- extend support for the wcn6855 model in the pwrseq-qcom-wcn driver
 - make this driver depend on CONFIG_OF=y as it uses some very
   OF-specific interfaces and depends on phandle parsing
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Merge tag 'pwrseq-updates-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull power sequencing updates from Bartosz Golaszewski:

 - extend support for the wcn6855 model in the pwrseq-qcom-wcn driver

 - make this driver depend on CONFIG_OF=y as it uses some very
   OF-specific interfaces and depends on phandle parsing

* tag 'pwrseq-updates-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  power: sequencing: qcom-wcn: improve support for wcn6855
  power: sequencing: make the QCom PMU pwrseq driver depend on CONFIG_OF
 2024-11-20 12:41:03 -08:00
Linus Torvalds
131561f2ca gpio updates for v6.13-rc1 
GPIOLIB core:
 - use the new mem_is_zero() instead of memchr_inv(s, 0, n)
 - don't store debounce period twice needlessly
 - clean-up debugfs handling
 - remove leftover comments referring to no longer used spinlocks
 - unduplicate some operations like SRCU locks and initializing GPIO descriptors
 - constify the sysfs class struct
 - use lock guards in GPIO sysfs code
 - update GPIO uAPI internal flags all at once atomically for consistency with
   other places
 - modify the behavior of the sysfs interface by no longer exporting lines that
   are named inside the driver code or board files with the sysfs links bearing
   the line names as this has for many years been largely unused due to the
   prevalence of DT, ACPI and firmware nodes over board files and made the API
   inconsistent
 - for GPIO interrupt providers: free irqs that are still requested by users
   when removing the chip
 
 GPIO uAPI:
 - notify user-space about changes to GPIO lines' state (requested, released,
   reconfigured) triggered from the kernel as well (until now we'd only do
   this for changes triggered from user-space)
 - to that end: modify the internal workings of the notification mechanism by
   switching to an atomic notifier which allows us to send events from atomic
   context
 - also to that end store the debounce period in the GPIO descriptor struct
   and not in the character device context struct
 - while at it, also cover the corner-case of users introducing changes over
   sysfs while others watch them via the character device
 - don't report GPIO lines requested as interrupts as "used" to user-space as it
   can still request them as GPIOs
 
 New drivers:
 - add a driver for the GPIO functionality of the MFD Congatec Board Controller
 - add a driver for the PolarFire GPIO controller
 - add a driver supporting the GPIOs on FTDI FT2232H
 
 Driver improvements:
 - use generic device property accessors instead of OF-specific ones across
   many GPIO drivers (mpc8xxx, vf610, eic-sprd, davinci, ts4900, xilinx, mvebu)
 - use devres helpers to simplify error paths and either shrink or entirely
   remove the driver's remove() callback (grgpio, amdpt, menz127, max730x,
   ftgpio010, 74x164, ljca)
 - use helper variables to store the address of pdev->dev and avoid some
   line-breaks
 - use device_for_each_child_node_scoped() to avoid having to put the fwnode
   on breaks or errors (gpio-sim, gpio-dwapb, gpiolib-acpi)
 - use a scoped bitmap to simplify the code and drop goto labels in
   gpio-aggregator
 - drop unneeded Kconfig dependencies on OF_GPIO (grgpio, mveby, xilinx)
 - add support for new models to gpio-aspeed, gpio-rockchip and gpio-dwapb
 - clean-up ACPI handling and some other bits in gpio-xgene-sb
 - replace deprecated PCI functions in pcie-idio-24 and pci-idio-16
 - allow to build davinci and mvebu drivers with COMPILE_TEST=y
 - remove dead code in gpio-mb86s7x
 - switch back to using platform_driver::remove() (after the conversion to
   remove_new()) across the GPIO drivers
 - remove remaining uses of GPIOF_ACTIVE_LOW across the tree and drop this
   deprecated symbol
 - convert the gpio-altera driver to no longer pull in the deprecated
   legacy-of-mm-gpiochip.h header
 - use of_property_present() instead of of_property_read_bool() in gpiolib-of
   and gpio-rockchip
 - allow to build the tegra186 driver on Tegra234 platforms in Kconfig
 
 Late fixes:
 - add a missing return value check after devm_kasprintf() to gpio-grgpio
 
 DT bindings:
 - document the ngpios property of gpio-mmio
 - add support for a new aspeed model
 - fix the example for st,nomadik-gpio
 
 Other:
 - kernel doc and comments tweaks
 - fix typos in TODO
 - reorder headers alphabetically in some drivers
 - fix incorrect format specifiers in gpio tools
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Merge tag 'gpio-updates-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "Three new drivers, support for some new models in existing ones and
  lots of various tweaks and improvements across the board (switching to
  using recommended APIs, code shrink and simplification, etc.).

  Also a new feature in the character device uAPI where we now notify
  the user-space about changes triggered by in-kernel users as well, not
  only when they were done by other user-space agents.

  Summary:

  GPIOLIB core:
   - use the new mem_is_zero() instead of memchr_inv(s, 0, n)
   - don't store debounce period twice needlessly
   - clean-up debugfs handling
   - remove leftover comments referring to no longer used spinlocks
   - unduplicate some operations like SRCU locks and initializing GPIO
     descriptors
   - constify the sysfs class struct
   - use lock guards in GPIO sysfs code
   - update GPIO uAPI internal flags all at once atomically for
     consistency with other places
   - modify the behavior of the sysfs interface by no longer exporting
     lines that are named inside the driver code or board files with the
     sysfs links bearing the line names as this has for many years been
     largely unused due to the prevalence of DT, ACPI and firmware nodes
     over board files and made the API inconsistent
   - for GPIO interrupt providers: free irqs that are still requested by
     users when removing the chip

  GPIO uAPI:
   - notify user-space about changes to GPIO lines' state (requested,
     released, reconfigured) triggered from the kernel as well (until
     now we'd only do this for changes triggered from user-space)
   - to that end: modify the internal workings of the notification
     mechanism by switching to an atomic notifier which allows us to
     send events from atomic context
   - also to that end store the debounce period in the GPIO descriptor
     struct and not in the character device context struct
   - while at it, also cover the corner-case of users introducing
     changes over sysfs while others watch them via the character device
   - don't report GPIO lines requested as interrupts as "used" to
     user-space as it can still request them as GPIOs

  New drivers:
   - GPIO part of the MFD Congatec Board Controller
   - PolarFire GPIO controller
   - GPIOs on FTDI FT2232H

  Driver improvements:
   - use generic device property accessors instead of OF-specific ones
     across many GPIO drivers (mpc8xxx, vf610, eic-sprd, davinci,
     ts4900, xilinx, mvebu)
   - use devres helpers to simplify error paths and either shrink or
     entirely remove the driver's remove() callback (grgpio, amdpt,
     menz127, max730x, ftgpio010, 74x164, ljca)
   - use helper variables to store the address of pdev->dev and avoid
     some line-breaks
   - use device_for_each_child_node_scoped() to avoid having to put the
     fwnode on breaks or errors (gpio-sim, gpio-dwapb, gpiolib-acpi)
   - use a scoped bitmap to simplify the code and drop goto labels in
     gpio-aggregator
   - drop unneeded Kconfig dependencies on OF_GPIO (grgpio, mveby,
     xilinx)
   - add support for new models to gpio-aspeed, gpio-rockchip and
     gpio-dwapb
   - clean-up ACPI handling and some other bits in gpio-xgene-sb
   - replace deprecated PCI functions in pcie-idio-24 and pci-idio-16
   - allow to build davinci and mvebu drivers with COMPILE_TEST=y
   - remove dead code in gpio-mb86s7x
   - switch back to using platform_driver::remove() (after the
     conversion to remove_new()) across the GPIO drivers
   - remove remaining uses of GPIOF_ACTIVE_LOW across the tree and drop
     this deprecated symbol
   - convert the gpio-altera driver to no longer pull in the deprecated
     legacy-of-mm-gpiochip.h header
   - use of_property_present() instead of of_property_read_bool() in
     gpiolib-of and gpio-rockchip
   - allow to build the tegra186 driver on Tegra234 platforms in Kconfig

  Late fixes:
   - add a missing return value check after devm_kasprintf() to
     gpio-grgpio

  DT bindings:
   - document the ngpios property of gpio-mmio
   - add support for a new aspeed model
   - fix the example for st,nomadik-gpio

  Other:
   - kernel doc and comments tweaks
   - fix typos in TODO
   - reorder headers alphabetically in some drivers
   - fix incorrect format specifiers in gpio tools"

* tag 'gpio-updates-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (98 commits)
  gpio: tegra186: Allow to enable driver on Tegra234
  gpio: grgpio: Add NULL check in grgpio_probe
  tools: gpio: Fix several incorrect format specifiers
  gpio: mpfs: add CoreGPIO support
  gpio: rockchip: support new version GPIO
  gpio: rockchip: change the GPIO version judgment logic
  gpio: rockchip: explan the format of the GPIO version ID
  gpiolib: cdev: use !mem_is_zero() instead of memchr_inv(s, 0, n)
  MAINTAINERS: add gpio driver to PolarFire entry
  gpio: Get rid of GPIOF_ACTIVE_LOW
  USB: gadget: pxa27x_udc: Avoid using GPIOF_ACTIVE_LOW
  pcmcia: soc_common: Avoid using GPIOF_ACTIVE_LOW
  leds: gpio: Avoid using GPIOF_ACTIVE_LOW
  Input: gpio_keys_polled - avoid using GPIOF_ACTIVE_LOW
  Input: gpio_keys - avoid using GPIOF_ACTIVE_LOW
  gpio: Use of_property_present() for non-boolean properties
  gpio: mpfs: add polarfire soc gpio support
  gpio: altera: Drop legacy-of-mm-gpiochip.h header
  gpio: pcie-idio-24: Replace deprecated PCI functions
  gpio: pci-idio-16: Replace deprecated PCI functions
  ...
 2024-11-20 12:37:06 -08:00
Linus Torvalds
7d75606665 pwm: Changes for v6.13-rc1 
This pull request prominently contains a new abstraction for PWM
 waveforms that is more expressive that the legacy one. Compared to the
 old abstraction it contains a duty_offset member instead of polarity.
 This new abstraction is already used in an ADC driver merged into the
 iio tree. So I expect you will get a part of this tree also via the iio
 pull request for 6.13-rc1 (tag pwm/duty_offset-for-6.13-rc1).
 
 Otherwise it's the usual collection of fixes, cleanups and dt doc
 updates.
 
 This time around thanks go to Andy Shevchenko, Clark Wang, Conor Dooley,
 David Lechner, Dimitri Fedrau, Frank Li, Jun Li, Kelvin Zhang, Krzysztof
 Kozlowski, Nuno Sa, Shen Lichuan and Trevor Gamblin for code
 contributions, testing and review.
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Merge tag 'pwm/for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux

Pull pwm updates from Uwe Kleine-König:
 "This contains a new abstraction for PWM waveforms that is more
  expressive that the legacy one. Compared to the old abstraction it
  contains a duty_offset member instead of polarity. This new
  abstraction is already used in an ADC driver merged into the iio tree.

  The new API requires changes to the lowlevel drivers. For now there
  are two drivers that are converted to the new API (axi-pwmgen and
  stm32). Converted drivers continue to work with the old API. Drivers
  not yet converted only work with the older API.

  Otherwise it's the usual collection of fixes, cleanups and dt doc
  updates.

  This time around thanks go to Andy Shevchenko, Clark Wang, Conor
  Dooley, David Lechner, Dimitri Fedrau, Frank Li, Jun Li, Kelvin Zhang,
  Krzysztof Kozlowski, Nuno Sa, Shen Lichuan and Trevor Gamblin for code
  contributions, testing and review"

* tag 'pwm/for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux:
  pwm: Assume a disabled PWM to emit a constant inactive output
  pwm: core: export pwm_get_state_hw()
  pwm: core: use device_match_name() instead of strcmp(dev_name(...
  dt-bindings: pwm: adi,axi-pwmgen: Increase #pwm-cells to 3
  pwm: imx27: Use clk_bulk_*() API to simplify clock handling
  pwm: imx27: Workaround of the pwm output bug when decrease the duty cycle
  pwm: axi-pwmgen: Enable FORCE_ALIGN by default
  pwm: axi-pwmgen: Rename 0x10 register
  dt-bindings: pwm: amlogic: Document C3 PWM
  pwm: axi-pwmgen: Create a dedicated function for getting driver data from a chip
  pwm: atmel-tcb: Use min() macro
  pwm: stm32: Fix error checking for a regmap_read() call
  pwm: Add kernel doc for members added to pwm_ops recently
  pwm: Reorder symbols in core.c
  pwm: stm32: Implementation of the waveform callbacks
  pwm: axi-pwmgen: Implementation of the waveform callbacks
  pwm: Add tracing for waveform callbacks
  pwm: Provide new consumer API functions for waveforms
  pwm: New abstraction for PWM waveforms
  pwm: Add more locking
 2024-11-20 12:34:22 -08:00
Linus Torvalds
f2ef39727a spi: Updates for v6.13 
The only real core work we've got this time around is the completion of
 the transition to the new host/target naming for the core APIs, Kconfig
 still needs doing but that's a lot less invasive.  Otherwise the big
 changes are the new drivers that have been added:
 
  - Completion of the conversion to spi_alloc_host()/_target() and
    removal of the old naming.
  - Cleanups for Rockchip drivers, these brought in a new logging helper
    in the driver core for warnings during probe.
  - Support for configuration of the word delay via spidev_test.
  - Support for AMD HID2 controllers, Apple SPI controller and Realtek
    SPI-NAND controllers.
 
 The Rockchip cleanups
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Merge tag 'spi-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "The only real core work we've got this time around is the completion
  of the transition to the new host/target naming for the core APIs,
  Kconfig still needs doing but that's a lot less invasive.

  Otherwise the big changes are the new drivers that have been added:

   - Completion of the conversion to spi_alloc_host()/_target() and
     removal of the old naming.

   - Cleanups for Rockchip drivers, these brought in a new logging
     helper in the driver core for warnings during probe.

   - Support for configuration of the word delay via spidev_test.

   - Support for AMD HID2 controllers, Apple SPI controller and Realtek
     SPI-NAND controllers"

* tag 'spi-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (58 commits)
  spi: imx: support word delay
  spi: imx: pass struct spi_transfer to prepare_transfer()
  spi: cs42l43: Add GPIO speaker id support to the bridge configuration
  spi: Delete useless checks
  spi: apple: Remove unnecessary .owner for apple_spi_driver
  spi: spidev_test: add support for word delay
  spi: apple: Add driver for Apple SPI controller
  spi: dt-bindings: apple,spi: Add binding for Apple SPI controllers
  spi: Use of_property_present() for non-boolean properties
  spi: zynqmp-gqspi: Undo runtime PM changes at driver exit time​
  spi: spi-mem: rtl-snand: Correctly handle DMA transfers
  spi: tegra210-quad: Avoid shift-out-of-bounds
  spi: axi-spi-engine: Emit trace events for spi transfers
  dt-bindings: spi: sprd,sc9860-spi: convert to YAML
  spi: Replace deprecated PCI functions
  spi: dt-bindings: samsung: Add a compatible for samsung,exynos8895-spi
  spi: spi-mem: Add Realtek SPI-NAND controller
  dt-bindings: spi: Add realtek,rtl9301-snand
  spi: make class structs const
  spi: dt-bindings: brcm,bcm2835-aux-spi: Convert to dtschema
  ...
 2024-11-20 12:23:06 -08:00
Linus Torvalds
4bd37a902a regulator: Updates for v6.13 
This was a quite quiet release for regulators on the drivers front, but
 we do have two small but useful core improvements:
 
  - Improve handling of cases where DT platforms specify both DT and
    init_data based configuration for a single regulator.
  - A helper of_regulator_get_optional() to simplify writing generic
    bindings for regulator consumers in subsystems.
 
 There's also some YAML conversions for the DT bindings which are a big
 part of the diffstat.
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Merge tag 'regulator-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This was a quite quiet release for regulators on the drivers front,
  but we do have two small but useful core improvements:

   - Improve handling of cases where DT platforms specify both DT and
     init_data based configuration for a single regulator.

   - A helper of_regulator_get_optional() to simplify writing generic
     bindings for regulator consumers in subsystems.

  There's also some YAML conversions for the DT bindings which are a big
  part of the diffstat"

* tag 'regulator-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: dt-bindings: qcom,rpmh: Correct PM8550VE supplies
  regulator: Switch back to struct platform_driver::remove()
  regulator: doc: remove documentation comment for regulator_init
  regulator: doc: add missing documentation for init_cb
  regulator: rk808: Restrict DVS GPIOs to the RK808 variant only
  regulator: rk808: Use dev_err_probe() in the probe path
  regulator: rk808: Perform trivial code cleanups
  regulator: dt-bindings: qcom,qca6390-pmu: add more properties for wcn6855
  regulator: dt-bindings: lltc,ltc3676: convert to YAML
  regulator: core: Use fsleep() to get best sleep mechanism
  regulator: core: remove machine init callback from config
  regulator: core: add callback to perform runtime init
  regulator: core: do not silently ignore provided init_data
  regulator: max5970: Drop unused structs
  regulator: dt-bindings: vctrl-regulator: convert to YAML
  regulator: qcom-smd: make smd_vreg_rpm static
  regulator: Call of_node_put() only once in rzg2l_usb_vbus_regulator_probe()
  regulator: isl6271a: Drop explicit initialization of struct i2c_device_id::driver_data to 0
  regulator: Add devres version of of_regulator_get_optional()
  regulator: Add of_regulator_get_optional() for pure DT regulator lookup
 2024-11-20 12:18:50 -08:00
Linus Torvalds
37c7d3538a regmap: Updates for v6.13 
The main thing for regmap this time around is some improvements of the
 lockdep annotations which stop some false positives.  We also have one
 new helper for setting a bitmask to the same value, and several test
 improvements.
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Merge tag 'regmap-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "The main thing for regmap this time around is some improvements of the
  lockdep annotations which stop some false positives. We also have one
  new helper for setting a bitmask to the same value, and several test
  improvements"

* tag 'regmap-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: provide regmap_assign_bits()
  regmap: irq: Set lockdep class for hierarchical IRQ domains
  regmap: maple: Provide lockdep (sub)class for maple tree's internal lock
  regmap: kunit: Fix repeated test param
  regcache: Improve documentation of available cache types
  regmap: Specifically test writing 0 as a value to sparse caches
  regmap-irq: Consistently use memset32() in regmap_irq_thread()
 2024-11-20 12:09:47 -08:00
Linus Torvalds
856385e0c5 linux_kselftest-next-6.13-rc1 
kselftest update for Linux 6.13-rc1
 
 -- timers test - removes duplicates defines
 -- timers test - fixes to improve error reporting
 -- rtc test - adds check rtc alarm status to alarm test
 -- resctrl test - adds array overrun checks during iMC config parsing code
 -- resctrl test - adds array overflow checks when reading strings
 -- resctrl test - fixes and reorganizing code
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Merge tag 'linux_kselftest-next-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest update from Shuah Khan:
 "timer test:
   - remove duplicate defines
   - fixes to improve error reporting

  rtc test:
   - check rtc alarm status in alarm test

  resctrl test:
   - add array overrun checks during iMC config parsing code and when
     reading strings
   - fixes and reorganizing code"

* tag 'linux_kselftest-next-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (23 commits)
  selftests/resctrl: Replace magic constants used as array size
  selftests/resctrl: Keep results from first test run
  selftests/resctrl: Do not compare performance counters and resctrl at low bandwidth
  selftests/resctrl: Use cache size to determine "fill_buf" buffer size
  selftests/resctrl: Ensure measurements skip initialization of default benchmark
  selftests/resctrl: Make benchmark parameter passing robust
  selftests/resctrl: Remove unused measurement code
  selftests/resctrl: Only support measured read operation
  selftests/resctrl: Remove "once" parameter required to be false
  selftests/resctrl: Make wraparound handling obvious
  selftests/resctrl: Protect against array overflow when reading strings
  selftests/resctrl: Protect against array overrun during iMC config parsing
  selftests/resctrl: Fix memory overflow due to unhandled wraparound
  selftests/resctrl: Print accurate buffer size as part of MBM results
  selftests/resctrl: Make functions only used in same file static
  selftests: Add a test mangling with uc_sigmask
  selftests: Rename sigaltstack to generic signal
  selftest: rtc: Add to check rtc alarm status for alarm related test
  selftests:timers: remove local CLOCKID defines
  selftests: timers: Remove unneeded semicolon
  ...
 2024-11-20 11:54:39 -08:00
Linus Torvalds
f89a687aae kgdb patches for 6.13 
A relatively modest collection of changes:
 
 * Adopt kstrtoint() and kstrtol() instead of the simple_strtoXX family
   for better error checking of user input.
 * Align the print behavour when breakpoints are enabled and disabled by
   adopting the current behaviour of breakpoint disable for both.
 * Remove some of the (rather odd and user hostile) hex fallbacks and
   require kdb users to prefix with 0x instead.
 * Tidy up (and fix) control code handling in kdb's keyboard code. This
   makes the control code handling at the keyboard behave the same way
   as it does via the UART.
 * Switch my own entry in MAINTAINERS to my @kernel.org address.
 
 Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
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Merge tag 'kgdb-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

Pull kgdb updates from Daniel Thompson:
 "A relatively modest collection of changes:

   - Adopt kstrtoint() and kstrtol() instead of the simple_strtoXX
     family for better error checking of user input.

   - Align the print behavour when breakpoints are enabled and disabled
     by adopting the current behaviour of breakpoint disable for both.

   - Remove some of the (rather odd and user hostile) hex fallbacks and
     require kdb users to prefix with 0x instead.

   - Tidy up (and fix) control code handling in kdb's keyboard code.
     This makes the control code handling at the keyboard behave the
     same way as it does via the UART.

   - Switch my own entry in MAINTAINERS to my @kernel.org address"

* tag 'kgdb-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
  kdb: fix ctrl+e/a/f/b/d/p/n broken in keyboard mode
  MAINTAINERS: Use Daniel Thompson's korg address for kgdb work
  kdb: Fix breakpoint enable to be silent if already enabled
  kdb: Remove fallback interpretation of arbitrary numbers as hex
  trace: kdb: Replace simple_strtoul with kstrtoul in kdb_ftdump
  kdb: Replace the use of simple_strto with safer kstrto in kdb_main
 2024-11-20 11:47:43 -08:00
Linus Torvalds
aad3a0d084 ftrace updates for v6.13: 
- Merged tag ftrace-v6.12-rc4
 
   There was a fix to locking in register_ftrace_graph() for shadow stacks
   that was sent upstream. But this code was also being rewritten, and the
   locking fix was needed. Merging this fix was required to continue the
   work.
 
 - Restructure the function graph shadow stack to prepare it for use with
   kretprobes
 
   With the goal of merging the shadow stack logic of function graph and
   kretprobes, some more restructuring of the function shadow stack is
   required.
 
   Move out function graph specific fields from the fgraph infrastructure and
   store it on the new stack variables that can pass data from the entry
   callback to the exit callback.
 
   Hopefully, with this change, the merge of kretprobes to use fgraph shadow
   stacks will be ready by the next merge window.
 
 - Make shadow stack 4k instead of using PAGE_SIZE.
 
   Some architectures have very large PAGE_SIZE values which make its use for
   shadow stacks waste a lot of memory.
 
 - Give shadow stacks its own kmem cache.
 
   When function graph is started, every task on the system gets a shadow
   stack. In the future, shadow stacks may not be 4K in size. Have it have
   its own kmem cache so that whatever size it becomes will still be
   efficient in allocations.
 
 - Initialize profiler graph ops as it will be needed for new updates to fgraph
 
 - Convert to use guard(mutex) for several ftrace and fgraph functions
 
 - Add more comments and documentation
 
 - Show function return address in function graph tracer
 
   Add an option to show the caller of a function at each entry of the
   function graph tracer, similar to what the function tracer does.
 
 - Abstract out ftrace_regs from being used directly like pt_regs
 
   ftrace_regs was created to store a partial pt_regs. It holds only the
   registers and stack information to get to the function arguments and
   return values. On several archs, it is simply a wrapper around pt_regs.
   But some users would access ftrace_regs directly to get the pt_regs which
   will not work on all archs. Make ftrace_regs an abstract structure that
   requires all access to its fields be through accessor functions.
 
 - Show how long it takes to do function code modifications
 
   When code modification for function hooks happen, it always had the time
   recorded in how long it took to do the conversion. But this value was
   never exported. Recently the code was touched due to new ROX modification
   handling that caused a large slow down in doing the modifications and
   had a significant impact on boot times.
 
   Expose the timings in the dyn_ftrace_total_info file. This file was
   created a while ago to show information about memory usage and such to
   implement dynamic function tracing. It's also an appropriate file to store
   the timings of this modification as well. This will make it easier to see
   the impact of changes to code modification on boot up timings.
 
 - Other clean ups and small fixes
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Merge tag 'ftrace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull ftrace updates from Steven Rostedt:

 - Restructure the function graph shadow stack to prepare it for use
   with kretprobes

   With the goal of merging the shadow stack logic of function graph and
   kretprobes, some more restructuring of the function shadow stack is
   required.

   Move out function graph specific fields from the fgraph
   infrastructure and store it on the new stack variables that can pass
   data from the entry callback to the exit callback.

   Hopefully, with this change, the merge of kretprobes to use fgraph
   shadow stacks will be ready by the next merge window.

 - Make shadow stack 4k instead of using PAGE_SIZE.

   Some architectures have very large PAGE_SIZE values which make its
   use for shadow stacks waste a lot of memory.

 - Give shadow stacks its own kmem cache.

   When function graph is started, every task on the system gets a
   shadow stack. In the future, shadow stacks may not be 4K in size.
   Have it have its own kmem cache so that whatever size it becomes will
   still be efficient in allocations.

 - Initialize profiler graph ops as it will be needed for new updates to
   fgraph

 - Convert to use guard(mutex) for several ftrace and fgraph functions

 - Add more comments and documentation

 - Show function return address in function graph tracer

   Add an option to show the caller of a function at each entry of the
   function graph tracer, similar to what the function tracer does.

 - Abstract out ftrace_regs from being used directly like pt_regs

   ftrace_regs was created to store a partial pt_regs. It holds only the
   registers and stack information to get to the function arguments and
   return values. On several archs, it is simply a wrapper around
   pt_regs. But some users would access ftrace_regs directly to get the
   pt_regs which will not work on all archs. Make ftrace_regs an
   abstract structure that requires all access to its fields be through
   accessor functions.

 - Show how long it takes to do function code modifications

   When code modification for function hooks happen, it always had the
   time recorded in how long it took to do the conversion. But this
   value was never exported. Recently the code was touched due to new
   ROX modification handling that caused a large slow down in doing the
   modifications and had a significant impact on boot times.

   Expose the timings in the dyn_ftrace_total_info file. This file was
   created a while ago to show information about memory usage and such
   to implement dynamic function tracing. It's also an appropriate file
   to store the timings of this modification as well. This will make it
   easier to see the impact of changes to code modification on boot up
   timings.

 - Other clean ups and small fixes

* tag 'ftrace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (22 commits)
  ftrace: Show timings of how long nop patching took
  ftrace: Use guard to take ftrace_lock in ftrace_graph_set_hash()
  ftrace: Use guard to take the ftrace_lock in release_probe()
  ftrace: Use guard to lock ftrace_lock in cache_mod()
  ftrace: Use guard for match_records()
  fgraph: Use guard(mutex)(&ftrace_lock) for unregister_ftrace_graph()
  fgraph: Give ret_stack its own kmem cache
  fgraph: Separate size of ret_stack from PAGE_SIZE
  ftrace: Rename ftrace_regs_return_value to ftrace_regs_get_return_value
  selftests/ftrace: Fix check of return value in fgraph-retval.tc test
  ftrace: Use arch_ftrace_regs() for ftrace_regs_*() macros
  ftrace: Consolidate ftrace_regs accessor functions for archs using pt_regs
  ftrace: Make ftrace_regs abstract from direct use
  fgragh: No need to invoke the function call_filter_check_discard()
  fgraph: Simplify return address printing in function graph tracer
  function_graph: Remove unnecessary initialization in ftrace_graph_ret_addr()
  function_graph: Support recording and printing the function return address
  ftrace: Have calltime be saved in the fgraph storage
  ftrace: Use a running sleeptime instead of saving on shadow stack
  fgraph: Use fgraph data to store subtime for profiler
  ...
 2024-11-20 11:34:10 -08:00
Linus Torvalds
8f7c8b88bd sched_ext: Change for v6.13 
- Improve the default select_cpu() implementation making it topology aware
   and handle WAKE_SYNC better.
 
 - set_arg_maybe_null() was used to inform the verifier which ops args could
   be NULL in a rather hackish way. Use the new __nullable CFI stub tags
   instead.
 
 - On Sapphire Rapids multi-socket systems, a BPF scheduler, by hammering on
   the same queue across sockets, could live-lock the system to the point
   where the system couldn't make reasonable forward progress. This could
   lead to soft-lockup triggered resets or stalling out bypass mode switch
   and thus BPF scheduler ejection for tens of minutes if not hours. After
   trying a number of mitigations, the following set worked reliably:
 
   - Injecting artificial cpu_relax() loops in two places while sched_ext is
     trying to turn on the bypass mode.
 
   - Triggering scheduler ejection when soft-lockup detection is imminent (a
     quarter of threshold left).
 
   While not the prettiest, the impact both in terms of code complexity and
   overhead is minimal.
 
 - A common complaint on the API is the overuse of the word "dispatch" and
   the confusion around "consume". This is due to how the dispatch queues
   became more generic over time. Rename the affected kfuncs for clarity.
   Thanks to BPF's compatibility features, this change can be made in a way
   that's both forward and backward compatible. The compatibility code will
   be dropped in a few releases.
 
 - Pull sched_ext/for-6.12-fixes to receive a prerequisite change. Other misc
   changes.
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Merge tag 'sched_ext-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext updates from Tejun Heo:

 - Improve the default select_cpu() implementation making it topology
   aware and handle WAKE_SYNC better.

 - set_arg_maybe_null() was used to inform the verifier which ops args
   could be NULL in a rather hackish way. Use the new __nullable CFI
   stub tags instead.

 - On Sapphire Rapids multi-socket systems, a BPF scheduler, by
   hammering on the same queue across sockets, could live-lock the
   system to the point where the system couldn't make reasonable forward
   progress.

   This could lead to soft-lockup triggered resets or stalling out
   bypass mode switch and thus BPF scheduler ejection for tens of
   minutes if not hours. After trying a number of mitigations, the
   following set worked reliably:

     - Injecting artificial cpu_relax() loops in two places while
       sched_ext is trying to turn on the bypass mode.

     - Triggering scheduler ejection when soft-lockup detection is
       imminent (a quarter of threshold left).

   While not the prettiest, the impact both in terms of code complexity
   and overhead is minimal.

 - A common complaint on the API is the overuse of the word "dispatch"
   and the confusion around "consume". This is due to how the dispatch
   queues became more generic over time. Rename the affected kfuncs for
   clarity. Thanks to BPF's compatibility features, this change can be
   made in a way that's both forward and backward compatible. The
   compatibility code will be dropped in a few releases.

 - Other misc changes

* tag 'sched_ext-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (21 commits)
  sched_ext: Replace scx_next_task_picked() with switch_class() in comment
  sched_ext: Rename scx_bpf_dispatch[_vtime]_from_dsq*() -> scx_bpf_dsq_move[_vtime]*()
  sched_ext: Rename scx_bpf_consume() to scx_bpf_dsq_move_to_local()
  sched_ext: Rename scx_bpf_dispatch[_vtime]() to scx_bpf_dsq_insert[_vtime]()
  sched_ext: scx_bpf_dispatch_from_dsq_set_*() are allowed from unlocked context
  sched_ext: add a missing rcu_read_lock/unlock pair at scx_select_cpu_dfl()
  sched_ext: Clarify sched_ext_ops table for userland scheduler
  sched_ext: Enable the ops breather and eject BPF scheduler on softlockup
  sched_ext: Avoid live-locking bypass mode switching
  sched_ext: Fix incorrect use of bitwise AND
  sched_ext: Do not enable LLC/NUMA optimizations when domains overlap
  sched_ext: Introduce NUMA awareness to the default idle selection policy
  sched_ext: Replace set_arg_maybe_null() with __nullable CFI stub tags
  sched_ext: Rename CFI stubs to names that are recognized by BPF
  sched_ext: Introduce LLC awareness to the default idle selection policy
  sched_ext: Clarify ops.select_cpu() for single-CPU tasks
  sched_ext: improve WAKE_SYNC behavior for default idle CPU selection
  sched_ext: Use btf_ids to resolve task_struct
  sched/ext: Use tg_cgroup() to elieminate duplicate code
  sched/ext: Fix unmatch trailing comment of CONFIG_EXT_GROUP_SCHED
  ...
 2024-11-20 10:08:00 -08:00
Linus Torvalds
7586d52765 cgroup: Changes for v6.13 
- cpu.stat now also shows niced CPU time.
 
 - Freezer and cpuset optimizations.
 
 - Other misc changes.
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Merge tag 'cgroup-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup updates from Tejun Heo:

 - cpu.stat now also shows niced CPU time

 - Freezer and cpuset optimizations

 - Other misc changes

* tag 'cgroup-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup/cpuset: Disable cpuset_cpumask_can_shrink() test if not load balancing
  cgroup/cpuset: Further optimize code if CONFIG_CPUSETS_V1 not set
  cgroup/cpuset: Enforce at most one rebuild_sched_domains_locked() call per operation
  cgroup/cpuset: Revert "Allow suppression of sched domain rebuild in update_cpumasks_hier()"
  MAINTAINERS: remove Zefan Li
  cgroup/freezer: Add cgroup CGRP_FROZEN flag update helper
  cgroup/freezer: Reduce redundant traversal for cgroup_freeze
  cgroup/bpf: only cgroup v2 can be attached by bpf programs
  Revert "cgroup: Fix memory leak caused by missing cgroup_bpf_offline"
  selftests/cgroup: Fix compile error in test_cpu.c
  cgroup/rstat: Selftests for niced CPU statistics
  cgroup/rstat: Tracking cgroup-level niced CPU time
  cgroup/cpuset: Fix spelling errors in file kernel/cgroup/cpuset.c
 2024-11-20 09:54:49 -08:00
Linus Torvalds
d6b6d39054 workqueue: Changes for v6.13 
- Maximum concurrency limit of 512 which was set a long time ago is too low
   now. A legitimate use (BPF cgroup release) of system_wq could saturate it
   under stress test conditions leading to false dependencies and deadlocks.
   While the offending use was switched to a dedicated workqueue, use the
   opportunity to bump WQ_MAX_ACTIVE four fold and document that system
   workqueue shouldn't be saturated. Workqueue should add at least a warning
   mechanism for cases where system workqueues are saturated.
 
 - Recent workqueue updates to support more flexible execution topology made
   unbound workqueues use per-cpu worker pool frontends which pushed up
   workqueue flush overhead. As consecutive CPUs are likely to be pointing to
   the same worker pool, reduce overhead by switching locks only when
   necessary.
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Merge tag 'wq-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue updates from Tejun Heo:

 - The maximum concurrency limit of 512 which was set a long time ago is
   too low now.

   A legitimate use (BPF cgroup release) of system_wq could saturate it
   under stress test conditions leading to false dependencies and
   deadlocks.

   While the offending use was switched to a dedicated workqueue, use
   the opportunity to bump WQ_MAX_ACTIVE four fold and document that
   system workqueue shouldn't be saturated. Workqueue should add at
   least a warning mechanism for cases where system workqueues are
   saturated.

 - Recent workqueue updates to support more flexible execution topology
   made unbound workqueues use per-cpu worker pool frontends which
   pushed up workqueue flush overhead.

   As consecutive CPUs are likely to be pointing to the same worker
   pool, reduce overhead by switching locks only when necessary.

* tag 'wq-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: Reduce expensive locks for unbound workqueue
  workqueue: Adjust WQ_MAX_ACTIVE from 512 to 2048
  workqueue: doc: Add a note saturating the system_wq is not permitted
 2024-11-20 09:41:11 -08:00
Linus Torvalds
a0e752bda2 Probes update for v6.13: 
Kprobes cleanups. Functionality does not change.
 - kprobes: Cleanup the config comment
   Adjust #endif comments.
 - kprobes: Cleanup collect_one_slot() and __disable_kprobe()
   Make fail fast to reduce code nested level.
 - kprobes: Use struct_size() in __get_insn_slot()
   Use struct_size() to avoid special macro.
 - x86/kprobes: Cleanup kprobes on ftrace code
   Use macro instead of direct field access/magic number, and avoid
   redundant instruction pointer setting.
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Merge tag 'probes-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes updates from Masami Hiramatsu:
 "Kprobes cleanups. Functionality does not change.

   - kprobes: Cleanup the config comment

     Adjust #endif comments.

   - kprobes: Cleanup collect_one_slot() and __disable_kprobe()

     Make fail fast to reduce code nested level.

   - kprobes: Use struct_size() in __get_insn_slot()

     Use struct_size() to avoid special macro.

   - x86/kprobes: Cleanup kprobes on ftrace code

     Use macro instead of direct field access/magic number, and avoid
     redundant instruction pointer setting"

* tag 'probes-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  x86/kprobes: Cleanup kprobes on ftrace code
  kprobes: Use struct_size() in __get_insn_slot()
  kprobes: Cleanup collect_one_slot() and __disable_kprobe()
  kprobes: Cleanup the config comment
 2024-11-20 09:36:05 -08:00
Linus Torvalds
aa44f41470 Livepatching changes for 6.13 
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Merge tag 'livepatching-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching

Pull livepatching update from Petr Mladek:

 - A new selftest for livepatching of a kprobed function

* tag 'livepatching-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching:
  selftests: livepatch: test livepatching a kprobed function
  selftests: livepatch: save and restore kprobe state
  selftests: livepatch: rename KLP_SYSFS_DIR to SYSFS_KLP_DIR
 2024-11-20 09:33:23 -08:00
Linus Torvalds
7d66d3ab13 printk changes for 6.13 
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Merge tag 'printk-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

Pull printk updates from Petr Mladek:

 - Print more precise information about the printk log buffer memory
   usage.

 - Make sure that the sysrq title is shown on the console even when
   deferred.

 - Do not enable earlycon by `console=` which is meant to disable the
   default console.

* tag 'printk-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  printk: add dummy printk_force_console_enter/exit helpers
  tty: sysrq: Use printk_force_console context on __handle_sysrq
  printk: Introduce FORCE_CON flag
  printk: Improve memory usage logging during boot
  init: Don't proxy `console=` to earlycon
 2024-11-20 09:21:11 -08:00
Linus Torvalds
c3cda60e83 Another moderately busy cycle in docsland: 
- Work on Chinese translations has picked up again.  Happily, they are
   maintaining the existing translations and not just adding new ones.
 
 - Some maintenance of the Japanese and Italian translations as well.
 
 - The removal of the venerable "dontdiff" file.  It has long outlived its
   usefulness and contained entries ("parse.*") that would actively mask
   actual source change.
 
 - The addition of enforcement information to the code-of-conduct
   documentation.
 
 Along with some build-system fixes and a lot of typo and language fixes.
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Merge tag 'docs-6.13' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "Another moderately busy cycle in docsland:

   - Work on Chinese translations has picked up again. Happily, they are
     maintaining the existing translations and not just adding new ones.

   - Some maintenance of the Japanese and Italian translations as well.

   - The removal of the venerable "dontdiff" file. It has long outlived
     its usefulness and contained entries ("parse.*") that would
     actively mask actual source change.

   - The addition of enforcement information to the code-of-conduct
     documentation.

  Along with some build-system fixes and a lot of typo and language
  fixes"

* tag 'docs-6.13' of git://git.lwn.net/linux: (52 commits)
  Documentation/CoC: spell out enforcement for unacceptable behaviors
  docs: fix typos and whitespace in Documentation/process/backporting.rst
  docs/zh_CN: fix one sentence in llvm.rst
  docs: bug-bisect: add a note about bisecting -next
  docs/zh_CN: add the translation of kbuild/llvm.rst
  Documentation: Fix incorrect paths/magic in magic numbers rst
  Documentation/maintainer-tip: Fix typos
  Documentation: Improve crash_kexec_post_notifiers description
  Docs/zh_CN: Translate physical_memory.rst to Simplified Chinese
  Documentation: admin: reorganize kernel-parameters intro
  docs/zh_CN: update the translation of process/programming-language.rst
  docs/zh_CN: update the translation of mm/page_owner.rst
  docs/zh_CN: update the translation of mm/page_table_check.rst
  docs/zh_CN: update the translation of mm/overcommit-accounting.rst
  docs/zh_CN: update the translation of mm/admon/faq.rst
  docs/zh_CN: update the translation of mm/active_mm.rst
  docs/zh_CN: update the translation of mm/hmm.rst
  docs: remove Documentation/dontdiff
  docs/zh_CN: Add a entry in Chinese glossary
  Docs/zh_CN: Fix the pfn calculation error in page_tables.rst
  ...
 2024-11-20 09:16:45 -08:00
Linus Torvalds
bf9aa14fc5 A rather large update for timekeeping and timers: 
- The final step to get rid of auto-rearming posix-timers
 
     posix-timers are currently auto-rearmed by the kernel when the signal
     of the timer is ignored so that the timer signal can be delivered once
     the corresponding signal is unignored.
 
     This requires to throttle the timer to prevent a DoS by small intervals
     and keeps the system pointlessly out of low power states for no value.
     This is a long standing non-trivial problem due to the lock order of
     posix-timer lock and the sighand lock along with life time issues as
     the timer and the sigqueue have different life time rules.
 
     Cure this by:
 
      * Embedding the sigqueue into the timer struct to have the same life
        time rules. Aside of that this also avoids the lookup of the timer
        in the signal delivery and rearm path as it's just a always valid
        container_of() now.
 
      * Queuing ignored timer signals onto a seperate ignored list.
 
      * Moving queued timer signals onto the ignored list when the signal is
        switched to SIG_IGN before it could be delivered.
 
      * Walking the ignored list when SIG_IGN is lifted and requeue the
        signals to the actual signal lists. This allows the signal delivery
        code to rearm the timer.
 
     This also required to consolidate the signal delivery rules so they are
     consistent across all situations. With that all self test scenarios
     finally succeed.
 
   - Core infrastructure for VFS multigrain timestamping
 
     This is required to allow the kernel to use coarse grained time stamps
     by default and switch to fine grained time stamps when inode attributes
     are actively observed via getattr().
 
     These changes have been provided to the VFS tree as well, so that the
     VFS specific infrastructure could be built on top.
 
   - Cleanup and consolidation of the sleep() infrastructure
 
     * Move all sleep and timeout functions into one file
 
     * Rework udelay() and ndelay() into proper documented inline functions
       and replace the hardcoded magic numbers by proper defines.
 
     * Rework the fsleep() implementation to take the reality of the timer
       wheel granularity on different HZ values into account. Right now the
       boundaries are hard coded time ranges which fail to provide the
       requested accuracy on different HZ settings.
 
     * Update documentation for all sleep/timeout related functions and fix
       up stale documentation links all over the place
 
     * Fixup a few usage sites
 
   - Rework of timekeeping and adjtimex(2) to prepare for multiple PTP clocks
 
     A system can have multiple PTP clocks which are participating in
     seperate and independent PTP clock domains. So far the kernel only
     considers the PTP clock which is based on CLOCK TAI relevant as that's
     the clock which drives the timekeeping adjustments via the various user
     space daemons through adjtimex(2).
 
     The non TAI based clock domains are accessible via the file descriptor
     based posix clocks, but their usability is very limited. They can't be
     accessed fast as they always go all the way out to the hardware and
     they cannot be utilized in the kernel itself.
 
     As Time Sensitive Networking (TSN) gains traction it is required to
     provide fast user and kernel space access to these clocks.
 
     The approach taken is to utilize the timekeeping and adjtimex(2)
     infrastructure to provide this access in a similar way how the kernel
     provides access to clock MONOTONIC, REALTIME etc.
 
     Instead of creating a duplicated infrastructure this rework converts
     timekeeping and adjtimex(2) into generic functionality which operates
     on pointers to data structures instead of using static variables.
 
     This allows to provide time accessors and adjtimex(2) functionality for
     the independent PTP clocks in a subsequent step.
 
   - Consolidate hrtimer initialization
 
     hrtimers are set up by initializing the data structure and then
     seperately setting the callback function for historical reasons.
 
     That's an extra unnecessary step and makes Rust support less straight
     forward than it should be.
 
     Provide a new set of hrtimer_setup*() functions and convert the core
     code and a few usage sites of the less frequently used interfaces over.
 
     The bulk of the htimer_init() to hrtimer_setup() conversion is already
     prepared and scheduled for the next merge window.
 
   - Drivers:
 
     * Ensure that the global timekeeping clocksource is utilizing the
       cluster 0 timer on MIPS multi-cluster systems.
 
       Otherwise CPUs on different clusters use their cluster specific
       clocksource which is not guaranteed to be synchronized with other
       clusters.
 
     * Mostly boring cleanups, fixes, improvements and code movement
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Merge tag 'timers-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "A rather large update for timekeeping and timers:

   - The final step to get rid of auto-rearming posix-timers

     posix-timers are currently auto-rearmed by the kernel when the
     signal of the timer is ignored so that the timer signal can be
     delivered once the corresponding signal is unignored.

     This requires to throttle the timer to prevent a DoS by small
     intervals and keeps the system pointlessly out of low power states
     for no value. This is a long standing non-trivial problem due to
     the lock order of posix-timer lock and the sighand lock along with
     life time issues as the timer and the sigqueue have different life
     time rules.

     Cure this by:

       - Embedding the sigqueue into the timer struct to have the same
         life time rules. Aside of that this also avoids the lookup of
         the timer in the signal delivery and rearm path as it's just a
         always valid container_of() now.

       - Queuing ignored timer signals onto a seperate ignored list.

       - Moving queued timer signals onto the ignored list when the
         signal is switched to SIG_IGN before it could be delivered.

       - Walking the ignored list when SIG_IGN is lifted and requeue the
         signals to the actual signal lists. This allows the signal
         delivery code to rearm the timer.

     This also required to consolidate the signal delivery rules so they
     are consistent across all situations. With that all self test
     scenarios finally succeed.

   - Core infrastructure for VFS multigrain timestamping

     This is required to allow the kernel to use coarse grained time
     stamps by default and switch to fine grained time stamps when inode
     attributes are actively observed via getattr().

     These changes have been provided to the VFS tree as well, so that
     the VFS specific infrastructure could be built on top.

   - Cleanup and consolidation of the sleep() infrastructure

       - Move all sleep and timeout functions into one file

       - Rework udelay() and ndelay() into proper documented inline
         functions and replace the hardcoded magic numbers by proper
         defines.

       - Rework the fsleep() implementation to take the reality of the
         timer wheel granularity on different HZ values into account.
         Right now the boundaries are hard coded time ranges which fail
         to provide the requested accuracy on different HZ settings.

       - Update documentation for all sleep/timeout related functions
         and fix up stale documentation links all over the place

       - Fixup a few usage sites

   - Rework of timekeeping and adjtimex(2) to prepare for multiple PTP
     clocks

     A system can have multiple PTP clocks which are participating in
     seperate and independent PTP clock domains. So far the kernel only
     considers the PTP clock which is based on CLOCK TAI relevant as
     that's the clock which drives the timekeeping adjustments via the
     various user space daemons through adjtimex(2).

     The non TAI based clock domains are accessible via the file
     descriptor based posix clocks, but their usability is very limited.
     They can't be accessed fast as they always go all the way out to
     the hardware and they cannot be utilized in the kernel itself.

     As Time Sensitive Networking (TSN) gains traction it is required to
     provide fast user and kernel space access to these clocks.

     The approach taken is to utilize the timekeeping and adjtimex(2)
     infrastructure to provide this access in a similar way how the
     kernel provides access to clock MONOTONIC, REALTIME etc.

     Instead of creating a duplicated infrastructure this rework
     converts timekeeping and adjtimex(2) into generic functionality
     which operates on pointers to data structures instead of using
     static variables.

     This allows to provide time accessors and adjtimex(2) functionality
     for the independent PTP clocks in a subsequent step.

   - Consolidate hrtimer initialization

     hrtimers are set up by initializing the data structure and then
     seperately setting the callback function for historical reasons.

     That's an extra unnecessary step and makes Rust support less
     straight forward than it should be.

     Provide a new set of hrtimer_setup*() functions and convert the
     core code and a few usage sites of the less frequently used
     interfaces over.

     The bulk of the htimer_init() to hrtimer_setup() conversion is
     already prepared and scheduled for the next merge window.

   - Drivers:

       - Ensure that the global timekeeping clocksource is utilizing the
         cluster 0 timer on MIPS multi-cluster systems.

         Otherwise CPUs on different clusters use their cluster specific
         clocksource which is not guaranteed to be synchronized with
         other clusters.

       - Mostly boring cleanups, fixes, improvements and code movement"

* tag 'timers-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (140 commits)
  posix-timers: Fix spurious warning on double enqueue versus do_exit()
  clocksource/drivers/arm_arch_timer: Use of_property_present() for non-boolean properties
  clocksource/drivers/gpx: Remove redundant casts
  clocksource/drivers/timer-ti-dm: Fix child node refcount handling
  dt-bindings: timer: actions,owl-timer: convert to YAML
  clocksource/drivers/ralink: Add Ralink System Tick Counter driver
  clocksource/drivers/mips-gic-timer: Always use cluster 0 counter as clocksource
  clocksource/drivers/timer-ti-dm: Don't fail probe if int not found
  clocksource/drivers:sp804: Make user selectable
  clocksource/drivers/dw_apb: Remove unused dw_apb_clockevent functions
  hrtimers: Delete hrtimer_init_on_stack()
  alarmtimer: Switch to use hrtimer_setup() and hrtimer_setup_on_stack()
  io_uring: Switch to use hrtimer_setup_on_stack()
  sched/idle: Switch to use hrtimer_setup_on_stack()
  hrtimers: Delete hrtimer_init_sleeper_on_stack()
  wait: Switch to use hrtimer_setup_sleeper_on_stack()
  timers: Switch to use hrtimer_setup_sleeper_on_stack()
  net: pktgen: Switch to use hrtimer_setup_sleeper_on_stack()
  futex: Switch to use hrtimer_setup_sleeper_on_stack()
  fs/aio: Switch to use hrtimer_setup_sleeper_on_stack()
  ...
 2024-11-19 16:35:06 -08:00
Linus Torvalds
0352387523 First step of consolidating the VDSO data page handling: 
The VDSO data page handling is architecture specific for historical
   reasons, but there is no real technical reason to do so.
 
   Aside of that VDSO data has become a dump ground for various mechanisms
   and fail to provide a clear separation of the functionalities.
 
   Clean this up by:
 
     * consolidating the VDSO page data by getting rid of architecture
       specific warts especially in x86 and PowerPC.
 
     * removing the last includes of header files which are pulling in other
       headers outside of the VDSO namespace.
 
     * seperating timekeeping and other VDSO data accordingly.
 
   Further consolidation of the VDSO page handling is done in subsequent
   changes scheduled for the next merge window.
 
   This also lays the ground for expanding the VDSO time getters for
   independent PTP clocks in a generic way without making every architecture
   add support seperately.
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Merge tag 'timers-vdso-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull vdso data page handling updates from Thomas Gleixner:
 "First steps of consolidating the VDSO data page handling.

  The VDSO data page handling is architecture specific for historical
  reasons, but there is no real technical reason to do so.

  Aside of that VDSO data has become a dump ground for various
  mechanisms and fail to provide a clear separation of the
  functionalities.

  Clean this up by:

   - consolidating the VDSO page data by getting rid of architecture
     specific warts especially in x86 and PowerPC.

   - removing the last includes of header files which are pulling in
     other headers outside of the VDSO namespace.

   - seperating timekeeping and other VDSO data accordingly.

  Further consolidation of the VDSO page handling is done in subsequent
  changes scheduled for the next merge window.

  This also lays the ground for expanding the VDSO time getters for
  independent PTP clocks in a generic way without making every
  architecture add support seperately"

* tag 'timers-vdso-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
  x86/vdso: Add missing brackets in switch case
  vdso: Rename struct arch_vdso_data to arch_vdso_time_data
  powerpc: Split systemcfg struct definitions out from vdso
  powerpc: Split systemcfg data out of vdso data page
  powerpc: Add kconfig option for the systemcfg page
  powerpc/pseries/lparcfg: Use num_possible_cpus() for potential processors
  powerpc/pseries/lparcfg: Fix printing of system_active_processors
  powerpc/procfs: Propagate error of remap_pfn_range()
  powerpc/vdso: Remove offset comment from 32bit vdso_arch_data
  x86/vdso: Split virtual clock pages into dedicated mapping
  x86/vdso: Delete vvar.h
  x86/vdso: Access vdso data without vvar.h
  x86/vdso: Move the rng offset to vsyscall.h
  x86/vdso: Access rng vdso data without vvar.h
  x86/vdso: Access timens vdso data without vvar.h
  x86/vdso: Allocate vvar page from C code
  x86/vdso: Access rng data from kernel without vvar
  x86/vdso: Place vdso_data at beginning of vvar page
  x86/vdso: Use __arch_get_vdso_data() to access vdso data
  x86/mm/mmap: Remove arch_vma_name()
  ...
 2024-11-19 16:09:13 -08:00
Linus Torvalds
5c2b050848 A set of updates for the interrupt subsystem: 
- Tree wide:
 
     * Make nr_irqs static to the core code and provide accessor functions
       to remove existing and prevent future aliasing problems with local
       variables or function arguments of the same name.
 
   - Core code:
 
     * Prevent freeing an interrupt in the devres code which is not managed
       by devres in the first place.
 
     * Use seq_put_decimal_ull_width() for decimal values output in
       /proc/interrupts which increases performance significantly as it
       avoids parsing the format strings over and over.
 
     * Optimize raising the timer and hrtimer soft interrupts by using the
       'set bit only' variants instead of the combined version which checks
       whether ksoftirqd should be woken up. The latter is a pointless
       exercise as both soft interrupts are raised in the context of the
       timer interrupt and therefore never wake up ksoftirqd.
 
     * Delegate timer/hrtimer soft interrupt processing to a dedicated thread
       on RT.
 
       Timer and hrtimer soft interrupts are always processed in ksoftirqd
       on RT enabled kernels. This can lead to high latencies when other
       soft interrupts are delegated to ksoftirqd as well.
 
       The separate thread allows to run them seperately under a RT
       scheduling policy to reduce the latency overhead.
 
   - Drivers:
 
     * New drivers or extensions of existing drivers to support Renesas
       RZ/V2H(P), Aspeed AST27XX, T-HEAD C900 and ATMEL sam9x7 interrupt
       chips
 
     * Support for multi-cluster GICs on MIPS.
 
       MIPS CPUs can come with multiple CPU clusters, where each CPU cluster
       has its own GIC (Generic Interrupt Controller). This requires to
       access the GIC of a remote cluster through a redirect register block.
 
       This is encapsulated into a set of helper functions to keep the
       complexity out of the actual code paths which handle the GIC details.
 
     * Support for encrypted guests in the ARM GICV3 ITS driver
 
       The ITS page needs to be shared with the hypervisor and therefore
       must be decrypted.
 
     * Small cleanups and fixes all over the place
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Merge tag 'irq-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull interrupt subsystem updates from Thomas Gleixner:
 "Tree wide:

   - Make nr_irqs static to the core code and provide accessor functions
     to remove existing and prevent future aliasing problems with local
     variables or function arguments of the same name.

  Core code:

   - Prevent freeing an interrupt in the devres code which is not
     managed by devres in the first place.

   - Use seq_put_decimal_ull_width() for decimal values output in
     /proc/interrupts which increases performance significantly as it
     avoids parsing the format strings over and over.

   - Optimize raising the timer and hrtimer soft interrupts by using the
     'set bit only' variants instead of the combined version which
     checks whether ksoftirqd should be woken up. The latter is a
     pointless exercise as both soft interrupts are raised in the
     context of the timer interrupt and therefore never wake up
     ksoftirqd.

   - Delegate timer/hrtimer soft interrupt processing to a dedicated
     thread on RT.

     Timer and hrtimer soft interrupts are always processed in ksoftirqd
     on RT enabled kernels. This can lead to high latencies when other
     soft interrupts are delegated to ksoftirqd as well.

     The separate thread allows to run them seperately under a RT
     scheduling policy to reduce the latency overhead.

  Drivers:

   - New drivers or extensions of existing drivers to support Renesas
     RZ/V2H(P), Aspeed AST27XX, T-HEAD C900 and ATMEL sam9x7 interrupt
     chips

   - Support for multi-cluster GICs on MIPS.

     MIPS CPUs can come with multiple CPU clusters, where each CPU
     cluster has its own GIC (Generic Interrupt Controller). This
     requires to access the GIC of a remote cluster through a redirect
     register block.

     This is encapsulated into a set of helper functions to keep the
     complexity out of the actual code paths which handle the GIC
     details.

   - Support for encrypted guests in the ARM GICV3 ITS driver

     The ITS page needs to be shared with the hypervisor and therefore
     must be decrypted.

   - Small cleanups and fixes all over the place"

* tag 'irq-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (50 commits)
  irqchip/riscv-aplic: Prevent crash when MSI domain is missing
  genirq/proc: Use seq_put_decimal_ull_width() for decimal values
  softirq: Use a dedicated thread for timer wakeups on PREEMPT_RT.
  timers: Use __raise_softirq_irqoff() to raise the softirq.
  hrtimer: Use __raise_softirq_irqoff() to raise the softirq
  riscv: defconfig: Enable T-HEAD C900 ACLINT SSWI drivers
  irqchip: Add T-HEAD C900 ACLINT SSWI driver
  dt-bindings: interrupt-controller: Add T-HEAD C900 ACLINT SSWI device
  irqchip/stm32mp-exti: Use of_property_present() for non-boolean properties
  irqchip/mips-gic: Fix selection of GENERIC_IRQ_EFFECTIVE_AFF_MASK
  irqchip/mips-gic: Prevent indirect access to clusters without CPU cores
  irqchip/mips-gic: Multi-cluster support
  irqchip/mips-gic: Setup defaults in each cluster
  irqchip/mips-gic: Support multi-cluster in for_each_online_cpu_gic()
  irqchip/mips-gic: Replace open coded online CPU iterations
  genirq/irqdesc: Use str_enabled_disabled() helper in wakeup_show()
  genirq/devres: Don't free interrupt which is not managed by devres
  irqchip/gic-v3-its: Fix over allocation in itt_alloc_pool()
  irqchip/aspeed-intc: Add AST27XX INTC support
  dt-bindings: interrupt-controller: Add support for ASPEED AST27XX INTC
  ...
 2024-11-19 15:54:19 -08:00
Linus Torvalds
fb1dd1403c A set of changes for debugobjects: 
- Prevent destroying the kmem_cache on early failure.
 
     Destroying a kmem_cache requires work queues to be set up, but in the
     early failure case they are not yet initializated. So rather leak the
     cache instead of triggering a BUG.
 
   - Reduce parallel pool fill attempts.
 
     Refilling the object pool requires to take the global pool lock, which
     causes a massive performance issue when a large number of CPUs attempt
     to refill concurrently. It turns out that it's sufficient to let one
     CPU handle the refill from the to free list and in case there are not
     enough objects on it to allocate new objects from the kmem cache.
 
     This also splits the free list handling from the actual allocation path
     as that yields better results on RT where allocation is restricted to
     preemptible code paths. The refill from free list has no such
     restrictions.
 
   - Consolidate the global and the per CPU pools to use the same data
     structure, so all helper functions can be shared.
 
   - Simplify the object allocation/free logic.
 
     The allocation/free logic is an incomprehensible maze, which tries to
     utilize the to free list and the global pool in the best way. This all
     can be simplified into a straight forward comprehensible code flow.
 
   - Convert the allocation/free mechanism to batch mode.
 
     Transferring objects from the global pool to the per CPU pools or vice
     versa is done by walking the hlist and moving object by object. That
     not only increases the pool lock held time, it also dirties up to 17
     cache lines.
 
     This can be avoided by storing the pointer to the first object in a
     batch of 16 objects in the objects themself and propagate it through
     the batch when an object is enqueued into a pool or to a temporary
     hlist head on allocation.
 
     This allows to move batches of objects with at max four cache lines
     dirtied and reduces the pool lock held time and therefore contention
     significantly.
 
   - Improve the object reusage
 
     The current implementation is too agressively freeing unused objects,
     which is counterproductive on bursty workloads like a kernel compile.
 
     Address this by:
 
     	* increasing the per CPU pool size
 
 	* refilling the per CPU pool from the to be freed pool when the per
           CPU pool emptied a batch
 
 	* keeping track of object usage with a exponentially wheighted
           moving average which prevents the work queue callback to free
           objects prematuraly.
 
     This combined reduces the allocation/free rate for a full kernel
     compile significantly:
 
                 kmem_cache_alloc()  kmem_cache_free()
     Baseline:   380k                330k
     Improved:   170k                117k
 
   - A few cleanups and a more cache line friendly layout of debug
     information on top.
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Merge tag 'core-debugobjects-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull debugobjects updates from Thomas Gleixner:

 - Prevent destroying the kmem_cache on early failure.

   Destroying a kmem_cache requires work queues to be set up, but in the
   early failure case they are not yet initializated. So rather leak the
   cache instead of triggering a BUG.

 - Reduce parallel pool fill attempts.

   Refilling the object pool requires to take the global pool lock,
   which causes a massive performance issue when a large number of CPUs
   attempt to refill concurrently. It turns out that it's sufficient to
   let one CPU handle the refill from the to free list and in case there
   are not enough objects on it to allocate new objects from the kmem
   cache.

   This also splits the free list handling from the actual allocation
   path as that yields better results on RT where allocation is
   restricted to preemptible code paths. The refill from free list has
   no such restrictions.

 - Consolidate the global and the per CPU pools to use the same data
   structure, so all helper functions can be shared.

 - Simplify the object allocation/free logic.

   The allocation/free logic is an incomprehensible maze, which tries to
   utilize the to free list and the global pool in the best way. This
   all can be simplified into a straight forward comprehensible code
   flow.

 - Convert the allocation/free mechanism to batch mode.

   Transferring objects from the global pool to the per CPU pools or
   vice versa is done by walking the hlist and moving object by object.
   That not only increases the pool lock held time, it also dirties up
   to 17 cache lines.

   This can be avoided by storing the pointer to the first object in a
   batch of 16 objects in the objects themself and propagate it through
   the batch when an object is enqueued into a pool or to a temporary
   hlist head on allocation.

   This allows to move batches of objects with at max four cache lines
   dirtied and reduces the pool lock held time and therefore contention
   significantly.

 - Improve the object reusage

   The current implementation is too agressively freeing unused objects,
   which is counterproductive on bursty workloads like a kernel compile.

   Address this by:

      * increasing the per CPU pool size

      * refilling the per CPU pool from the to be freed pool when the
        per CPU pool emptied a batch

      * keeping track of object usage with a exponentially wheighted
        moving average which prevents the work queue callback to free
        objects prematuraly.

   This combined reduces the allocation/free rate for a full kernel
   compile significantly:

                  kmem_cache_alloc()  kmem_cache_free()
      Baseline:   380k                330k
      Improved:   170k                117k

 - A few cleanups and a more cache line friendly layout of debug
   information on top.

* tag 'core-debugobjects-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
  debugobjects: Track object usage to avoid premature freeing of objects
  debugobjects: Refill per CPU pool more agressively
  debugobjects: Double the per CPU slots
  debugobjects: Move pool statistics into global_pool struct
  debugobjects: Implement batch processing
  debugobjects: Prepare kmem_cache allocations for batching
  debugobjects: Prepare for batching
  debugobjects: Use static key for boot pool selection
  debugobjects: Rework free_object_work()
  debugobjects: Rework object freeing
  debugobjects: Rework object allocation
  debugobjects: Move min/max count into pool struct
  debugobjects: Rename and tidy up per CPU pools
  debugobjects: Use separate list head for boot pool
  debugobjects: Move pools into a datastructure
  debugobjects: Reduce parallel pool fill attempts
  debugobjects: Make debug_objects_enabled bool
  debugobjects: Provide and use free_object_list()
  debugobjects: Remove pointless debug printk
  debugobjects: Reuse put_objects() on OOM
  ...
 2024-11-19 15:20:04 -08:00
Linus Torvalds
a5c93bfec0 x86/mm changes for v6.13: 
- x86/mm/tlb: Put cpumask_test_cpu() check in switch_mm_irqs_off()
                under CONFIG_DEBUG_VM, to micro-optimize the context-switching
 	       code (Rik van Riel)
 
  - x86/mm/doc: Add missing details in virtual memory layout (Kirill A. Shutemov)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-mm-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 mm updates from Ingo Molnar:

 - Put cpumask_test_cpu() check in switch_mm_irqs_off() under
   CONFIG_DEBUG_VM, to micro-optimize the context-switching code (Rik
   van Riel)

 - Add missing details in virtual memory layout (Kirill A. Shutemov)

* tag 'x86-mm-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/tlb: Put cpumask_test_cpu() check in switch_mm_irqs_off() under CONFIG_DEBUG_VM
  x86/mm/doc: Add missing details in virtual memory layout
 2024-11-19 14:48:31 -08:00
Linus Torvalds
89c45f3823 x86 cleanups for v6.13: 
- x86/boot: Remove unused function atou() (Dr. David Alan Gilbert)
   - x86/cpu: Use str_yes_no() helper in show_cpuinfo_misc() (Thorsten Blum)
   - x86/platform: Switch back to struct platform_driver::remove() (Uwe Kleine-König)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-cleanups-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Ingo Molnar:

 - x86/boot: Remove unused function atou() (Dr. David Alan Gilbert)

 - x86/cpu: Use str_yes_no() helper in show_cpuinfo_misc() (Thorsten
   Blum)

 - x86/platform: Switch back to struct platform_driver::remove() (Uwe
   Kleine-König)

* tag 'x86-cleanups-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Remove unused function atou()
  x86/cpu: Use str_yes_no() helper in show_cpuinfo_misc()
  x86/platform: Switch back to struct platform_driver::remove()
 2024-11-19 14:46:39 -08:00
Linus Torvalds
0892d74213 x86/splitlock changes for v6.13: 
- Move Split and Bus lock code to a dedicated file (Ravi Bangoria)
  - Add split/bus lock support for AMD (Ravi Bangoria)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-splitlock-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 splitlock updates from Ingo Molnar:

 - Move Split and Bus lock code to a dedicated file (Ravi Bangoria)

 - Add split/bus lock support for AMD (Ravi Bangoria)

* tag 'x86-splitlock-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/bus_lock: Add support for AMD
  x86/split_lock: Move Split and Bus lock code to a dedicated file
 2024-11-19 14:34:02 -08:00
Linus Torvalds
3f020399e4 Scheduler changes for v6.13: 
- Core facilities:
 
     - Add the "Lazy preemption" model (CONFIG_PREEMPT_LAZY=y), which optimizes
       fair-class preemption by delaying preemption requests to the
       tick boundary, while working as full preemption for RR/FIFO/DEADLINE
       classes. (Peter Zijlstra)
 
         - x86: Enable Lazy preemption (Peter Zijlstra)
         - riscv: Enable Lazy preemption (Jisheng Zhang)
 
     - Initialize idle tasks only once (Thomas Gleixner)
 
     - sched/ext: Remove sched_fork() hack (Thomas Gleixner)
 
  - Fair scheduler:
     - Optimize the PLACE_LAG when se->vlag is zero (Huang Shijie)
 
  - Idle loop:
       Optimize the generic idle loop by removing unnecessary
       memory barrier (Zhongqiu Han)
 
  - RSEQ:
     - Improve cache locality of RSEQ concurrency IDs for
       intermittent workloads (Mathieu Desnoyers)
 
  - Waitqueues:
     - Make wake_up_{bit,var} less fragile (Neil Brown)
 
  - PSI:
     - Pass enqueue/dequeue flags to psi callbacks directly (Johannes Weiner)
 
  - Preparatory patches for proxy execution:
     - core: Add move_queued_task_locked helper (Connor O'Brien)
     - core: Consolidate pick_*_task to task_is_pushable helper (Connor O'Brien)
     - core: Split out __schedule() deactivate task logic into a helper (John Stultz)
     - core: Split scheduler and execution contexts (Peter Zijlstra)
     - locking/mutex: Make mutex::wait_lock irq safe (Juri Lelli)
     - locking/mutex: Expose __mutex_owner() (Juri Lelli)
     - locking/mutex: Remove wakeups from under mutex::wait_lock (Peter Zijlstra)
 
  - Misc fixes and cleanups:
     - core: Remove unused __HAVE_THREAD_FUNCTIONS hook support (David Disseldorp)
     - core: Update the comment for TIF_NEED_RESCHED_LAZY (Sebastian Andrzej Siewior)
     - wait: Remove unused bit_wait_io_timeout (Dr. David Alan Gilbert)
     - fair: remove the DOUBLE_TICK feature (Huang Shijie)
     - fair: fix the comment for PREEMPT_SHORT (Huang Shijie)
     - uclamp: Fix unnused variable warning (Christian Loehle)
     - rt: No PREEMPT_RT=y for all{yes,mod}config
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:
 "Core facilities:

   - Add the "Lazy preemption" model (CONFIG_PREEMPT_LAZY=y), which
     optimizes fair-class preemption by delaying preemption requests to
     the tick boundary, while working as full preemption for
     RR/FIFO/DEADLINE classes. (Peter Zijlstra)
        - x86: Enable Lazy preemption (Peter Zijlstra)
        - riscv: Enable Lazy preemption (Jisheng Zhang)

   - Initialize idle tasks only once (Thomas Gleixner)

   - sched/ext: Remove sched_fork() hack (Thomas Gleixner)

  Fair scheduler:

   - Optimize the PLACE_LAG when se->vlag is zero (Huang Shijie)

  Idle loop:

   - Optimize the generic idle loop by removing unnecessary memory
     barrier (Zhongqiu Han)

  RSEQ:

   - Improve cache locality of RSEQ concurrency IDs for intermittent
     workloads (Mathieu Desnoyers)

  Waitqueues:

   - Make wake_up_{bit,var} less fragile (Neil Brown)

  PSI:

   - Pass enqueue/dequeue flags to psi callbacks directly (Johannes
     Weiner)

  Preparatory patches for proxy execution:

   - Add move_queued_task_locked helper (Connor O'Brien)

   - Consolidate pick_*_task to task_is_pushable helper (Connor O'Brien)

   - Split out __schedule() deactivate task logic into a helper (John
     Stultz)

   - Split scheduler and execution contexts (Peter Zijlstra)

   - Make mutex::wait_lock irq safe (Juri Lelli)

   - Expose __mutex_owner() (Juri Lelli)

   - Remove wakeups from under mutex::wait_lock (Peter Zijlstra)

  Misc fixes and cleanups:

   - Remove unused __HAVE_THREAD_FUNCTIONS hook support (David
     Disseldorp)

   - Update the comment for TIF_NEED_RESCHED_LAZY (Sebastian Andrzej
     Siewior)

   - Remove unused bit_wait_io_timeout (Dr. David Alan Gilbert)

   - remove the DOUBLE_TICK feature (Huang Shijie)

   - fix the comment for PREEMPT_SHORT (Huang Shijie)

   - Fix unnused variable warning (Christian Loehle)

   - No PREEMPT_RT=y for all{yes,mod}config"

* tag 'sched-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
  sched, x86: Update the comment for TIF_NEED_RESCHED_LAZY.
  sched: No PREEMPT_RT=y for all{yes,mod}config
  riscv: add PREEMPT_LAZY support
  sched, x86: Enable Lazy preemption
  sched: Enable PREEMPT_DYNAMIC for PREEMPT_RT
  sched: Add Lazy preemption model
  sched: Add TIF_NEED_RESCHED_LAZY infrastructure
  sched/ext: Remove sched_fork() hack
  sched: Initialize idle tasks only once
  sched: psi: pass enqueue/dequeue flags to psi callbacks directly
  sched/uclamp: Fix unnused variable warning
  sched: Split scheduler and execution contexts
  sched: Split out __schedule() deactivate task logic into a helper
  sched: Consolidate pick_*_task to task_is_pushable helper
  sched: Add move_queued_task_locked helper
  locking/mutex: Expose __mutex_owner()
  locking/mutex: Make mutex::wait_lock irq safe
  locking/mutex: Remove wakeups from under mutex::wait_lock
  sched: Improve cache locality of RSEQ concurrency IDs for intermittent workloads
  sched: idle: Optimize the generic idle loop by removing needless memory barrier
  ...
 2024-11-19 14:16:06 -08:00
Colin Ian King
9080d11a6c scripts: ipe: polgen: remove redundant close and error exit path 
Currently if an fopen fails the error exit path is via code that
checks if fp is not null and closes the file, however, fp is null
so this check and close is redundant. Since the only use of the
err exit label is on the fopen check, remove it and replace the
code with a simple return of errno. Also remove variable rc since
it's no longer required.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Fan Wu <wufan@kernel.org>
 2024-11-19 13:57:03 -08:00
Linus Torvalds
f41dac3efb Performance events changes for v6.13: 
- Uprobes:
     - Add BPF session support (Jiri Olsa)
     - Switch to RCU Tasks Trace flavor for better performance (Andrii Nakryiko)
     - Massively increase uretprobe SMP scalability by SRCU-protecting
       the uretprobe lifetime (Andrii Nakryiko)
     - Kill xol_area->slot_count (Oleg Nesterov)
 
  - Core facilities:
     - Implement targeted high-frequency profiling by adding the ability
       for an event to "pause" or "resume" AUX area tracing (Adrian Hunter)
 
  - VM profiling/sampling:
     - Correct perf sampling with guest VMs (Colton Lewis)
 
  - New hardware support:
     - x86/intel: Add PMU support for Intel ArrowLake-H CPUs (Dapeng Mi)
 
  - Misc fixes and enhancements:
     - x86/intel/pt: Fix buffer full but size is 0 case (Adrian Hunter)
     - x86/amd: Warn only on new bits set (Breno Leitao)
     - x86/amd/uncore: Avoid a false positive warning about snprintf
                       truncation in amd_uncore_umc_ctx_init (Jean Delvare)
     - uprobes: Re-order struct uprobe_task to save some space (Christophe JAILLET)
     - x86/rapl: Move the pmu allocation out of CPU hotplug (Kan Liang)
     - x86/rapl: Clean up cpumask and hotplug (Kan Liang)
     - uprobes: Deuglify xol_get_insn_slot/xol_free_insn_slot paths (Oleg Nesterov)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull performance events updates from Ingo Molnar:
 "Uprobes:
    - Add BPF session support (Jiri Olsa)
    - Switch to RCU Tasks Trace flavor for better performance (Andrii
      Nakryiko)
    - Massively increase uretprobe SMP scalability by SRCU-protecting
      the uretprobe lifetime (Andrii Nakryiko)
    - Kill xol_area->slot_count (Oleg Nesterov)

  Core facilities:
    - Implement targeted high-frequency profiling by adding the ability
      for an event to "pause" or "resume" AUX area tracing (Adrian
      Hunter)

  VM profiling/sampling:
    - Correct perf sampling with guest VMs (Colton Lewis)

  New hardware support:
    - x86/intel: Add PMU support for Intel ArrowLake-H CPUs (Dapeng Mi)

  Misc fixes and enhancements:
    - x86/intel/pt: Fix buffer full but size is 0 case (Adrian Hunter)
    - x86/amd: Warn only on new bits set (Breno Leitao)
    - x86/amd/uncore: Avoid a false positive warning about snprintf
      truncation in amd_uncore_umc_ctx_init (Jean Delvare)
    - uprobes: Re-order struct uprobe_task to save some space
      (Christophe JAILLET)
    - x86/rapl: Move the pmu allocation out of CPU hotplug (Kan Liang)
    - x86/rapl: Clean up cpumask and hotplug (Kan Liang)
    - uprobes: Deuglify xol_get_insn_slot/xol_free_insn_slot paths (Oleg
      Nesterov)"

* tag 'perf-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
  perf/core: Correct perf sampling with guest VMs
  perf/x86: Refactor misc flag assignments
  perf/powerpc: Use perf_arch_instruction_pointer()
  perf/core: Hoist perf_instruction_pointer() and perf_misc_flags()
  perf/arm: Drop unused functions
  uprobes: Re-order struct uprobe_task to save some space
  perf/x86/amd/uncore: Avoid a false positive warning about snprintf truncation in amd_uncore_umc_ctx_init
  perf/x86/intel: Do not enable large PEBS for events with aux actions or aux sampling
  perf/x86/intel/pt: Add support for pause / resume
  perf/core: Add aux_pause, aux_resume, aux_start_paused
  perf/x86/intel/pt: Fix buffer full but size is 0 case
  uprobes: SRCU-protect uretprobe lifetime (with timeout)
  uprobes: allow put_uprobe() from non-sleepable softirq context
  perf/x86/rapl: Clean up cpumask and hotplug
  perf/x86/rapl: Move the pmu allocation out of CPU hotplug
  uprobe: Add support for session consumer
  uprobe: Add data pointer to consumer handlers
  perf/x86/amd: Warn only on new bits set
  uprobes: fold xol_take_insn_slot() into xol_get_insn_slot()
  uprobes: kill xol_area->slot_count
  ...
 2024-11-19 13:34:06 -08:00
Linus Torvalds
9d7d4ad222 Objtool changes for v6.13: 
- Detect non-relocated text references for more robust
    IBT sealing (Josh Poimboeuf)
 
  - Fix build error when building stripped down
    UAPI headers (HONG Yifan)
 
  - Exclude __tracepoints data from ENDBR checks to fix
    false positives on clang builds (Peter Zijlstra)
 
  - Fix ORC unwind for newly forked tasks (Zheng Yejian)
 
  - Fix readelf related faddr2line regression (Carlos Llamas)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool updates from Ingo Molnar:

 - Detect non-relocated text references for more robust
   IBT sealing (Josh Poimboeuf)

 - Fix build error when building stripped down
   UAPI headers (HONG Yifan)

 - Exclude __tracepoints data from ENDBR checks to fix
   false positives on clang builds (Peter Zijlstra)

 - Fix ORC unwind for newly forked tasks (Zheng Yejian)

 - Fix readelf related faddr2line regression (Carlos Llamas)

* tag 'objtool-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Exclude __tracepoints data from ENDBR checks
  Revert "scripts/faddr2line: Check only two symbols when calculating symbol size"
  x86/unwind/orc: Fix unwind for newly forked tasks
  objtool: Also include tools/include/uapi
  objtool: Detect non-relocated text references
 2024-11-19 13:27:52 -08:00
Linus Torvalds
364eeb79a2 Locking changes for v6.13 are: 
- lockdep:
     - Enable PROVE_RAW_LOCK_NESTING with PROVE_LOCKING (Sebastian Andrzej Siewior)
     - Add lockdep_cleanup_dead_cpu() (David Woodhouse)
 
  - futexes:
     - Use atomic64_inc_return() in get_inode_sequence_number() (Uros Bizjak)
     - Use atomic64_try_cmpxchg_relaxed() in get_inode_sequence_number() (Uros Bizjak)
 
  - RT locking:
     - Add sparse annotation PREEMPT_RT's locking (Sebastian Andrzej Siewior)
 
  - spinlocks:
     - Use atomic_try_cmpxchg_release() in osq_unlock() (Uros Bizjak)
 
  - atomics:
     - x86: Use ALT_OUTPUT_SP() for __alternative_atomic64() (Uros Bizjak)
     - x86: Use ALT_OUTPUT_SP() for __arch_{,try_}cmpxchg64_emu() (Uros Bizjak)
 
  - KCSAN, seqlocks:
     - Support seqcount_latch_t (Marco Elver)
 
  - <linux/cleanup.h>:
     - Add if_not_cond_guard() conditional guard helper (David Lechner)
     - Adjust scoped_guard() macros to avoid potential warning (Przemek Kitszel)
     - Remove address space of returned pointer (Uros Bizjak)
 
  - WW mutexes:
     - locking/ww_mutex: Adjust to lockdep nest_lock requirements (Thomas Hellström)
 
  - Rust integration:
     - Fix raw_spin_lock initialization on PREEMPT_RT (Eder Zulian)
 
  - miscellaneous cleanups & fixes:
     - lockdep: Fix wait-type check related warnings (Ahmed Ehab)
     - lockdep: Use info level for initial info messages (Jiri Slaby)
     - spinlocks: Make __raw_* lock ops static (Geert Uytterhoeven)
     - pvqspinlock: Convert fields of 'enum vcpu_state' to uppercase (Qiuxu Zhuo)
     - iio: magnetometer: Fix if () scoped_guard() formatting (Stephen Rothwell)
     - rtmutex: Fix misleading comment (Peter Zijlstra)
     - percpu-rw-semaphores: Fix grammar in percpu-rw-semaphore.rst (Xiu Jianfeng)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:
 "Lockdep:
   - Enable PROVE_RAW_LOCK_NESTING with PROVE_LOCKING (Sebastian Andrzej
     Siewior)
   - Add lockdep_cleanup_dead_cpu() (David Woodhouse)

  futexes:
   - Use atomic64_inc_return() in get_inode_sequence_number() (Uros
     Bizjak)
   - Use atomic64_try_cmpxchg_relaxed() in get_inode_sequence_number()
     (Uros Bizjak)

  RT locking:
   - Add sparse annotation PREEMPT_RT's locking (Sebastian Andrzej
     Siewior)

  spinlocks:
   - Use atomic_try_cmpxchg_release() in osq_unlock() (Uros Bizjak)

  atomics:
   - x86: Use ALT_OUTPUT_SP() for __alternative_atomic64() (Uros Bizjak)
   - x86: Use ALT_OUTPUT_SP() for __arch_{,try_}cmpxchg64_emu() (Uros
     Bizjak)

  KCSAN, seqlocks:
   - Support seqcount_latch_t (Marco Elver)

  <linux/cleanup.h>:
   - Add if_not_guard() conditional guard helper (David Lechner)
   - Adjust scoped_guard() macros to avoid potential warning (Przemek
     Kitszel)
   - Remove address space of returned pointer (Uros Bizjak)

  WW mutexes:
   - locking/ww_mutex: Adjust to lockdep nest_lock requirements (Thomas
     Hellström)

  Rust integration:
   - Fix raw_spin_lock initialization on PREEMPT_RT (Eder Zulian)

  Misc cleanups & fixes:
   - lockdep: Fix wait-type check related warnings (Ahmed Ehab)
   - lockdep: Use info level for initial info messages (Jiri Slaby)
   - spinlocks: Make __raw_* lock ops static (Geert Uytterhoeven)
   - pvqspinlock: Convert fields of 'enum vcpu_state' to uppercase
     (Qiuxu Zhuo)
   - iio: magnetometer: Fix if () scoped_guard() formatting (Stephen
     Rothwell)
   - rtmutex: Fix misleading comment (Peter Zijlstra)
   - percpu-rw-semaphores: Fix grammar in percpu-rw-semaphore.rst (Xiu
     Jianfeng)"

* tag 'locking-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits)
  locking/Documentation: Fix grammar in percpu-rw-semaphore.rst
  iio: magnetometer: fix if () scoped_guard() formatting
  rust: helpers: Avoid raw_spin_lock initialization for PREEMPT_RT
  kcsan, seqlock: Fix incorrect assumption in read_seqbegin()
  seqlock, treewide: Switch to non-raw seqcount_latch interface
  kcsan, seqlock: Support seqcount_latch_t
  time/sched_clock: Broaden sched_clock()'s instrumentation coverage
  time/sched_clock: Swap update_clock_read_data() latch writes
  locking/atomic/x86: Use ALT_OUTPUT_SP() for __arch_{,try_}cmpxchg64_emu()
  locking/atomic/x86: Use ALT_OUTPUT_SP() for __alternative_atomic64()
  cleanup: Add conditional guard helper
  cleanup: Adjust scoped_guard() macros to avoid potential warning
  locking/osq_lock: Use atomic_try_cmpxchg_release() in osq_unlock()
  cleanup: Remove address space of returned pointer
  locking/rtmutex: Fix misleading comment
  locking/rt: Annotate unlock followed by lock for sparse.
  locking/rt: Add sparse annotation for RCU.
  locking/rt: Remove one __cond_lock() in RT's spin_trylock_irqsave()
  locking/rt: Add sparse annotation PREEMPT_RT's sleeping locks.
  locking/pvqspinlock: Convert fields of 'enum vcpu_state' to uppercase
  ...
 2024-11-19 12:43:11 -08:00
Linus Torvalds
d8d78a90e7 - Add a feature flag which denotes AMD CPUs supporting workload classification 
with the purpose of using such hints when making scheduling decisions
 
 - Determine the boost enumerator for each AMD core based on its type: efficiency
   or performance, in the cppc driver
 
 - Add the type of a CPU to the topology CPU descriptor with the goal of
   supporting and making decisions based on the type of the respective core
 
 - Add a feature flag to denote AMD cores which have heterogeneous topology and
   enable SD_ASYM_PACKING for those
 
 - Check microcode revisions before disabling PCID on Intel
 
 - Cleanups and fixlets
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Merge tag 'x86_cpu_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpuid updates from Borislav Petkov:

 - Add a feature flag which denotes AMD CPUs supporting workload
   classification with the purpose of using such hints when making
   scheduling decisions

 - Determine the boost enumerator for each AMD core based on its type:
   efficiency or performance, in the cppc driver

 - Add the type of a CPU to the topology CPU descriptor with the goal of
   supporting and making decisions based on the type of the respective
   core

 - Add a feature flag to denote AMD cores which have heterogeneous
   topology and enable SD_ASYM_PACKING for those

 - Check microcode revisions before disabling PCID on Intel

 - Cleanups and fixlets

* tag 'x86_cpu_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Remove redundant CONFIG_NUMA guard around numa_add_cpu()
  x86/cpu: Fix FAM5_QUARK_X1000 to use X86_MATCH_VFM()
  x86/cpu: Fix formatting of cpuid_bits[] in scattered.c
  x86/cpufeatures: Add X86_FEATURE_AMD_WORKLOAD_CLASS feature bit
  x86/amd: Use heterogeneous core topology for identifying boost numerator
  x86/cpu: Add CPU type to struct cpuinfo_topology
  x86/cpu: Enable SD_ASYM_PACKING for PKG domain on AMD
  x86/cpufeatures: Add X86_FEATURE_AMD_HETEROGENEOUS_CORES
  x86/cpufeatures: Rename X86_FEATURE_FAST_CPPC to have AMD prefix
  x86/mm: Don't disable PCID when INVLPG has been fixed by microcode
 2024-11-19 12:27:19 -08:00
Linus Torvalds
55db8eb456 - Do the proper memory conversion of guest memory in order to be able to kexec 
kernels in SNP guests along with other adjustments and cleanups to that
   effect
 
 - Start converting and moving functionality from the sev-guest driver into
   core code with the purpose of supporting the secure TSC SNP feature where
   the hypervisor cannot influence the TSC exposed to the guest anymore
 
 - Add a "nosnp" cmdline option in order to be able to disable SNP support in
   the hypervisor and thus free-up resources which are not going to be used
 
 - Cleanups
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Merge tag 'x86_sev_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 SEV updates from Borislav Petkov:

 - Do the proper memory conversion of guest memory in order to be able
   to kexec kernels in SNP guests along with other adjustments and
   cleanups to that effect

 - Start converting and moving functionality from the sev-guest driver
   into core code with the purpose of supporting the secure TSC SNP
   feature where the hypervisor cannot influence the TSC exposed to the
   guest anymore

 - Add a "nosnp" cmdline option in order to be able to disable SNP
   support in the hypervisor and thus free-up resources which are not
   going to be used

 - Cleanups

[ Reminding myself about the endless TLA's again: SEV is the AMD Secure
  Encrypted Virtualization    - Linus ]

* tag 'x86_sev_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sev: Cleanup vc_handle_msr()
  x86/sev: Convert shared memory back to private on kexec
  x86/mm: Refactor __set_clr_pte_enc()
  x86/boot: Skip video memory access in the decompressor for SEV-ES/SNP
  virt: sev-guest: Carve out SNP message context structure
  virt: sev-guest: Reduce the scope of SNP command mutex
  virt: sev-guest: Consolidate SNP guest messaging parameters to a struct
  x86/sev: Cache the secrets page address
  x86/sev: Handle failures from snp_init()
  virt: sev-guest: Use AES GCM crypto library
  x86/virt: Provide "nosnp" boot option for sev kernel command line
  x86/virt: Move SEV-specific parsing into arch/x86/virt/svm
 2024-11-19 12:21:35 -08:00
Linus Torvalds
9db8b24070 - Replace deprecated PCI functions used in intel-mid 
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Merge tag 'x86_platform_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 platform cleanup from Borislav Petkov:

 - Replace deprecated PCI functions used in intel-mid

* tag 'x86_platform_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform/intel-mid: Replace deprecated PCI functions
 2024-11-19 12:19:59 -08:00
Linus Torvalds
ab713e7099 - Remove the unconditional cache writeback and invalidation after loading the 
microcode patch on Intel as this was addressing a microcode bug for which
   there is a concrete microcode revision check instead
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Merge tag 'x86_microcode_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 microcode loader update from Borislav Petkov:

 - Remove the unconditional cache writeback and invalidation after
   loading the microcode patch on Intel as this was addressing a
   microcode bug for which there is a concrete microcode revision check
   instead

* tag 'x86_microcode_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode/intel: Remove unnecessary cache writeback and invalidation
 2024-11-19 12:13:16 -08:00